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Crear Pool de Conexion GlassFish Server (Mysql-Oracle)
 
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Vídeo tutorial de como crear pool de conexión GlassFish Server Solución Error class java.lang.RuntimeException Comandos Oracle y Mysql asadmin.bat create-jdbc-connection-pool --datasourceclassname com.mysql.jdbc.jdbc2.optional.MysqlDataSource --restype javax.sql.DataSource --property "portNumber=3306:serverName=localhost:DatabaseName=oms:password=123456:user=root:url=jdbc\\:mysql\\://localhost\\:3306/oms\\?zeroDateTimeBehavior\\=convertToNull" MysqlPoolConexion asadmin.bat create-jdbc-resource --connectionpoolid MysqlPoolConexion jdbc/mysqlCon asadmin.bat create-jdbc-connection-pool --datasourceclassname oracle.jdbc.pool.OracleDataSource --restype javax.sql.DataSource --property user=jacabarcas:password=123456:url="jdbc\:oracle\:thin\:@localhost\:1521\:XE" OraclePoolConexion asadmin.bat create-jdbc-resource --connectionpoolid OraclePoolConexion jdbc/oracleCon Solución Error (HTTP Status 500 - Internal Server Error type Exception report messageInternal Server Error descriptionThe server encountered an internal error that prevented it from fulfilling this request. exception java.lang.IllegalStateException: getOutputStream() has already been called for this response note The full stack traces of the exception and its root causes are available in the GlassFish Server Open Source Edition 4.1.1 logs.)
Unfortunately App Has Stopped - How to Fix - ONLY FOR PROGRAMMERS - Android Studio Tutorial
 
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If your Android app crashes, then because of an uncaught RuntimeException like a NullPointerException. In this video we will learn, how to read the Logcat stack trace to find out what exception caused our app to crash and where it happened in our code, so we can provide more specific information when we ask for help. Java RuntimeException documentation: https://docs.oracle.com/javase/7/docs/api/java/lang/RuntimeException.html ____________________ Subscribe to my channel: https://www.youtube.com/c/codinginflow?sub_confirmation=1 Want more Android tutorials? Check my playlist section: https://www.youtube.com/c/codinginflow/playlists Follow me on social media: Facebook: https://www.facebook.com/codinginflow Instagram: https://www.instagram.com/codinginflow Twitter: https://twitter.com/codinginflow Blog: https://codinginflow.com/
Views: 52614 Coding in Flow
Oracle ACE Program and Java Champion
 
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Latin America Experts tell us what Oracle ACE Program and Java Champion mean for them. More information about these programs below: http://www.oracle.com/technetwork/es/community/oracle-ace/index.html https://java-champions.java.net/ Aparecen en este video: Paola Pullas (Ecuador) Enrique Orbegozo (Peru) Marcelo Ochoa (Argentina) Miguel Palacios (Peru) Gustavo Gonzalez (Argentina) Yara Senger (Brasil) Bruno Souza (Brasil) Andres Almiray (Colombia / Suiza) Marcus Vinicius (Brasil) Rolando Carrasco (Mexico)
Views: 1707 OracleAmericaLatina
Java Stack and Heap - Java Memory Management
 
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https://www.guru99.com/java-stack-heap.html the following video demonstrates how memory is allocated in stack java & heap java. This is complete guide to Java memory management The JVM divided the memory into following sections. Heap, Stack, Code, Static. What is Stack Memory? Stack in java is a section of memory which contains methods, instance variables, and reference variables. What is Heap Memory? Heap is a section of memory which contains Objects and may also contain reference variables. Like, share and subscribe our channel for more videos. Watch more videos on our YouTube channel at https://www.youtube.com/channel/UC19i1XD6k88KqHlET8atqFQ READ this as a book on Amazon by viewing at http://amzn.to/2han5hw Visit our website for more! www.guru99.com Read our blogs in https://www.guru99.com/blog/ FACEBOOK! Would you prefer to watch more about us? Like our page for more https://www.facebook.com/guru99com/ TWITTER! Tweet for us on Twitter with #guru99 and follow us on https://twitter.com/guru99com LinkedIn! Follow us here https://www.linkedin.com/company/guru99/ THANKS! We appreciate you reading this and hope you have a wonderful day! Sincerely, Guru99
Views: 106684 Guru99
CON3669 - Are You Aware of the /bin of Your JDK?
 
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A JDK installation includes many tools. You can often analyze issues relying only on these, without the need for (often expensive) third-party tools. Even better, being part of the JDK, they can be used as early as development and testing and for taking and analyzing memory dumps, stack traces of a particular system, GC activity, and more. This session iterates through several such tools, discusses their purpose and capabilities, and demonstrates their most common usages. Unleash the power of the tools you already have today! Speaker: Andrzej Grzesik, (╯°□°)╯︵ ┻━┻, _ I like programming. I do it a lot, mostly on the JVM, creating backends for distributed systems. I also display a particular affection to continuous delivery.. UI, unless quickly hacked, is not my play ;-) I believe that most problems we deal with are people problems, so I mix and match tools with technologies to achieve my goals, make people happy and achieve world peace :-) I believe in software quality, and organize GeeCON, Polish JUG, Krakow Software Craftsmanship, Cracow Hadoop User Group. In my free time, I read paper books and cycle, a lot!
Views: 800 Oracle Developers
What is the difference between PrintStakeTrace, toString, getMessage in Exception Handling? |
 
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Core Java Tutorial | Mr.Ramachandra ** For Online Training Registration: https://goo.gl/r6kJbB ► Call: +91-8179191999 💡 Also Watch C Language Tutorials: https://goo.gl/qDhJ2r Core Java FAQ's: https://goo.gl/qGh5mA Core Java Tutorials: https://goo.gl/NbaEge Java Programming Tutorials by Mr.Hari krishna: https://goo.gl/HThq6H Advanced Java Programming Tutorials by Mr.Nataraj: https://goo.gl/1U2Qgy Subscribe to our channel and hit the bell 🔔🔔🔔 icon to get video updates. 💡 Visit Our Websites For Classroom Training: https://nareshit.in/core-java-training/ For Online Training: https://nareshit.com/core-java-online... #JavaCollectionsFramework #Tutorials #Videos #corejava #Quiz -------------------------- 💡 About NareshIT: "Naresh IT is having 14+ years of experience in software training industry and the best Software Training Institute for online training, classroom training, weekend training, corporate training of Hadoop, Salesforce, AWS, DevOps, Spark, Data Science, Python, Tableau, RPA , Java, C#.NET, ASP.NET, Oracle, Testing Tools, Silver light, Linq, SQL Server, Selenium, Android, iPhone, C Language, C++, PHP and Digital Marketing in USA, Hyderabad, Chennai and Vijayawada, Bangalore India which provides online training across all the locations -------------------------- 💡 Our Online Training Features: 🎈 Training with Real-Time Experts 🎈 Industry Specific Scenario’s 🎈 Flexible Timings 🎈 Soft Copy of Material 🎈 Share Videos of each and every session. -------------------------- 💡 Please write back to us at 📧 [email protected]/ 📧 [email protected] or Call us at the USA: ☎+1404-232-9879 or India: ☎ +918179191999 -------------------------- 💡 Check The Below Links ► For Course Reg: https://goo.gl/r6kJbB ► Subscribe to Our Channel: https://goo.gl/q9ozyG ► Circle us on G+: https://plus.google.com/+NareshIT ► Like us on Facebook: https://www.facebook.com/NareshIT ► Follow us on Twitter: https://twitter.com/nareshitek ► Follow us on Linkedin: https://goo.gl/CRBZ5F ► Follow us on Instagram: https://goo.gl/3UXYK3
Understanding JVM Memory, Heap, Garbage Collection and Monitoring the JVM | Tech Primers
 
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This video covers Understanding JVM Memory, Heap, Garbage Collection and Monitoring the JVM using JVisual VM. Website: http://techprimers.com Slack Community: https://techprimers.slack.com Twitter: https://twitter.com/TechPrimers Facebook: http://fb.me/TechPrimers GitHub: https://github.com/TechPrimers or https://techprimers.github.io/ Video Editing: iMovie Background Music: Fredji Joakim Karud
Views: 22029 Tech Primers
Finding JDBC connection leaks (LowRes)
 
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Better resolution available at https://www.youtube.com/watch?v=7UGW6cUwdIE This screen cast shows how to detect JDBC connection leaks and find out where they're coming from. JDBC connection leak analysis is integrated into JProfiler's JDBC probe and has its own view. If a connection leak is detected, the stack trace and other information will help you to pinpoint the origin of the leak.
Views: 2467 Ingo Kegel
How to Program in Java
 
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share this : https://youtu.be/lEDZRC6xfq0 subscribe us : goo.gl/qZOyWH How to Program in Java J2ME programmers count bytes the way a super-model counts calories. – Unknown Java: write once, run away! –Brucee If Java had true garbage collection, most programs would delete themselves upon execution. – Robert Sewell Saying that Java is good because it works on all platforms is like saying anal sex is good because it works on all genders. – Unknown Java is a DSL to transform big XML documents into long exception stack traces. – Scott Bellware The definition of Hell is working with dates in Java, JDBC, and Oracle. Every single one of them screw it up. – Dick Wall CommunityOne 2007: Lunch with the Java Posse There are two ways of constructing a software design: One way is to make it so simple that there are obviously no deficiencies, and the other way is to make it so complicated that there are no obvious deficiencies. The first method is far more difficult. – C.A.R. Hoare (British computer scientist, winner of the 1980 Turing Award) How to Program in Java If debugging is the process of removing software bugs, then programming must be the process of putting them in. – Edsger Dijkstra (Dutch computer scientist, winner of the 1972 Turing Award) Measuring programming progress by lines of code is like measuring aircraft building progress by weight. – Bill Gates Debugging is twice as hard as writing the code in the first place. Therefore, if you write the code as cleverly as possible, you are, by definition, not smart enough to debug it. – Brian W. Kernighan Always code as if the guy who ends up maintaining your code will be a violent psychopath who knows where you live. – Martin Golding When debugging, novices insert corrective code; experts remove defective code. – Richard Pattis Computer science education cannot make anybody an expert programmer any more than studying brushes and pigment can make somebody an expert painter. – Eric S. Raymond (American programmer, open source software advocate, author of “The Cathedral and the Bazaar”) Most good programmers do programming not because they expect to get paid or get adulation by the public, but because it is fun to program.- Linus Torvalds Programming today is a race between software engineers striving to build bigger and better idiot-proof programs, and the Universe trying to produce bigger and better idiots. So far, the Universe is winning. – Rich Cook How to Program in Java
Views: 129 funny videos
thread dump analysis with lab,how to analyse deadlock thread dump with jstack,kill command in java
 
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Java Thread Dump Analysis, Thread Dump: Thread Stack Trace analysis, A thread dump can only show the thread status at the time of measurement, so in order to see the change in thread status, it is recommended to extract them from 5 to 10 times with 5-second intervals. The thread dump is written to the system out of the VM on which you executed the kill -3. If you are redirecting the console output of the JVM to a file, the thread dump will be in that file. If the JVM is running in an open console, then the thread dump will be displayed in its console. java thread dump jstack tutorial Using kill -QUIT to trigger Thread dump without restarting the Server Java Thread Activity Analyzer kill -3 to get java thread dump Java Análisis de Problemas Thread, Dump Tema: Análisis de trazas de pila del subproceso, Un volcado de hilo sólo puede mostrar el estado de hilo en el momento de la medición, por lo que con el fin de ver el cambio en el estado de hilo, se recomienda extraerlas de 5 a 10 veces con intervalos de 5 segundos. El volcado de hilo se escribe en el sistema de la máquina virtual en la que se ejecutó la matanza -3. Si está redirigiendo la salida de la consola de la JVM en un archivo, la descarga del hilo será en ese archivo. Si la JVM se está ejecutando en una consola abierta, entonces el volcado de hilo se mostrará en su consola. java volcado hilo jstack tutorial Usando kill-QUIT para activar volcado Tema sin necesidad de reiniciar el servidor Java Tema Actividad Analizador matar a -3 para obtener java volcado hilo جاوة الموضوع تحليل تفريغ، تفريغ الموضوع: الموضوع تحليل تتبع المكدس، تفريغ الموضوع يمكن أن تظهر فقط في حالة الموضوع في وقت القياس، وذلك من أجل أن نرى التغيير في وضع الموضوع، فمن المستحسن لاستخراجها 5-10 مرات مع فترات الثانية 5. يتم كتابة تفريغ الموضوع إلى نظام للخروج من VM الذي قمت تنفيذ -3 القتل. إذا كنت إعادة توجيه إخراج وحدة التحكم من JVM إلى ملف، وتفريغ الموضوع يكون في هذا الملف. إذا تم تشغيل JVM في وحدة مفتوحة، ثم سيتم عرض تفريغ الموضوع في جهازها. تفريغ الموضوع جاوة jstack البرنامج التعليمي باستخدام قتل-QUIT لتحريك تفريغ الموضوع بدون إعادة تشغيل الملقم جافا محلل آخر الموضوع قتل -3 للحصول على تفريغ الموضوع جاوة Java线程转储分析,线程转储线程堆栈跟踪分析, 在测量时,只能显示线程转储线程状态,所以才能看到的线程状态的变化,这是建议,提取他们从5到10倍,5秒的时间间隔。 线程转储写入到系统的VM上执行杀-3。如果要重定向的控制台输出的JVM线程转储到一个文件,在该文件中。如果JVM运行在一个开放的控制台,然后线程转储将被显示在控制台上。 java线程转储 jstack教程 使用kill-QUIT来触发,而无需重新启动服务器的线程转储 Java线程活动分析 杀-3获取Java线程转储 java tutorial for Beginners, how to Analyze thread dump, java deadlock problem and detection using threaddump, thread dump to identify deadlock
Views: 17492 Zariga Tongy
Java 9: The Quest for Very Large Heaps - JavaOne 2016
 
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ActiveViam and Oracle partner again to bring milestone improvements to garbage collection in Java 9, unlocking the potential for large memory applications, up to several dozens of terabytes. Antoine Chambille, the global head of Research and Development at ActiveViam, and Amir Javanshir, Principal Software Engineer at Oracle, host a recording "Java 9: The Quest for Very Large Heaps", originally presented at JavaOne 2016. This video détails the innovations that Oracle and ActiveViam partnered to develop that will enable Java applications to work on very large datasets, including the G1 Garbage Collector. Watch as they discuss about Off-Heap Memory, NUMA (Non-Uniform Memory Architecture), Garbage Collection (GC), Multi-version Concurrency Control (MVCC)…
Views: 1373 ActiveViam
Stack and Heap memory in java basic knowledge
 
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the things which we ignore the most often become the most important . Here's a basic understanding on heap and stack memory in java.
Views: 82166 Prashun Das
OAF How to raise  : Page Level Exceptions, Attribute Level Exceptions and Switcher Concept
 
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In this, we will explain about how to handle switcher, page level exceptions, attribute level exceptions
Views: 1926 Lead Technologies
Java Tutorial - #8 - Stack and Heap: Memory Management
 
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Did you find this video helpful? If so, why not subscribe!? ► http://bit.ly/CognitiveSurge Build a free website using 33i.co (https://33i.co) - Fast & Simple Website Design | Website Builder The best shared web hosting: https://www.bluehost.com/track/karlhadwen/ The best simple cloud hosting for developers: https://m.do.co/c/426ceabcea09 In this video I will be going over the Java Stack and Java Heap. I will be explaining where objects and variables are stored. The fundamentals of this video will be going over memory management. In future videos I will be explaining how the garbage collector works--it's imperative to understand all of these fundamental concepts to fully take advantage of Java. Like the Cognitive Surge Facebook page https://www.facebook.com/cognitivesurge Follow me on Twitter (Feel free to tweet me questions!) https://twitter.com/karlhadwen
Views: 56227 Karl Hadwen
How to review core files for troubleshooting
 
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This video explains What is a core file? What is required to get a stack trace? How to read a stack trace? What to do if you get a stack trace? Where to start troubleshooting?
Views: 6782 Informatica Support
Exception Handling in Java #17 | Readymade Exception Classes #2 | java.lang.StackOverflowError
 
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JAVA & WEB | Session 12 | Exception Handling in Java :- https://goo.gl/Ssu3tC Watch the complete web series "Java & Web" on YouTube. It's complete, comprehensive and conceptual. https://www.youtube.com/c/mynameisGYAN Follow me on: Facebook: https://www.facebook.com/mnisGYAN/ Linkedin: https://www.linkedin.com/in/gyan-prakash-tiwary-07215420/ Twitter: https://twitter.com/mnisGYAN Website: http://mynameisgyan.website/ Be the patron of this channel: https://www.patreon.com/mynameisGYAN #JavaAndWeb #ExceptionHandlingInJava #OCJP #SCJP #NullPointerException #javatutorialforbeginners #javainterviewquestionsandanswersforfreshers #javainterviewquestionsandanswers #javaprogramming
Views: 57 my name is GYAN
Finding JDBC connection leaks (HD)
 
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Recorded on 2015-11-19 This screen cast shows how to detect JDBC connection leaks and find out where they're coming from. JDBC connection leak analysis is integrated into JProfiler's JDBC probe and has its own view. If a connection leak is detected, the stack trace and other information will help you to pinpoint the origin of the leak.
Views: 2692 Ingo Kegel
Working with the Trace File Analyzer Collector
 
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The Trace File Analyzer (TFA) Collector Tool is a utility for collecting first failure diagnostics when creating Service Requests with Oracle Support. Using TFA Collector to make diagnostic collections removes questions about what files to collect and upload. TFA knows about all the well known Oracle and operating system diagnostic locations and collects only files that have been modified proximate to problem time specified from any of those well known locations. Larger files are also pruned proximate to problem time specified to reduce the size of the upload. If the system is a clustered environment TFA collects relevant diagnostics from the remote nodes as well. All of this can be accomplished with one simple command. Key features of TFA Collector include: RAC and single instance non-RAC support Time-based collection of relevant files OS Clusterware ASM DB OSW and CHMOS etc Large file pruning Cluster-wide time-relevant collections Analytics for key files DB alert logs Clusterware alert logs ASM alert logs system messages OSWatcher top and slabinfo data Flexible command-line interface Copyright © 2014 Oracle and/or its affiliates. Oracle® is a registered trademark of Oracle and/or its affiliates. All rights reserved. Oracle disclaims any warranties or representations as to the accuracy or completeness of this recording, demonstration, and/or written materials (the "Materials"). The Materials are provided "as is" without any warranty of any kind, either express or implied, including without limitation warranties of merchantability, fitness for a particular purpose, and non-infringement.
Apex Programming tutorial for beginners: Exception Handling in Salesforce using try catch finally
 
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Apex Programming tutorial for beginners: exception handling in salesforce Get the complete course:https://courses.mytutorialrack.com/p/salesforce-developer-training-for-beginners Checkout my website: http://mytutorialrack.com/ connect me on facebook: https://www.facebook.com/tutorialRack/ Follow me on twitter: https://twitter.com/mytutorialrack salesforce exception handling salesforce exception throw salesforce exception handling best practice salesforce exception reporting salesforce exception class methods salesforce exception logging salesforce exception 5103 salesforce exception email notification salesforce exception constructor exception salesforce exception salesforce class exception salesforce apex throw exception salesforce apex exception handling salesforce apex catch exception apex salesforce custom exception apex salesforce salesforce assert exception salesforce api exception codes salesforce apex exception email throw an exception salesforce salesforce batch exception salesforce exception catch system.exception internal salesforce.com query error salesforce.com exception handling salesforce connection exception salesforce exception failed to create http component salesforce convert exception to string dml exception salesforce salesforce exception error message salesforce exception email extends exception salesforce field integrity exception error salesforce exception e salesforce salesforce exception failed to move template exception framework salesforce salesforce first exception on row 0 exception salesforce getmessage salesforce exception getcause salesforce generic exception creator exception in salesforce exception handling in salesforce exception methods in salesforce throw exception in salesforce custom exception in salesforce exception handling in salesforce trigger catch exception in salesforce limit exception in salesforce exception report in salesforce salesforce json exception salesforce exception list salesforce limit exception exception salesforce methods salesforce exception message salesforce exception mail salesforce exception notification io exception null salesforce salesforce new exception salesforce exception object salesforce override exception salesforce exception print stack trace salesforce exception page salesforce query exception salesforce exception rollback salesforce raise exception salesforce runtime exception salesforce exception stack trace exception setmessage salesforce salesforce soap exception code 5103 salesforce system.exception too many future calls salesforce stringexception invalid id salesforce system exception assertion failed salesforce exception types salesforce exception test exception trigger salesforce throw exception trigger salesforce mixed dml exception salesforce test class salesforce timeout exception salesforce unknown_exception field integrity exception unknown salesforce salesforce unknown_exception destination url not reset salesforce unhandled exception salesforce unknown_exception an unexpected error occurred salesforce unknown exception 1201 salesforce validation exception
Views: 8033 MyTutorialRack
Process Monitor: Processes, Threads and Thread Stacks
 
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LoveMyTool.com blog video the shows how to explore processes and thread operation with procmon.
Views: 6312 Paul Offord
CON6627 Proactive Optimization of Java Workloads in Production Environments
 
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Every application has its limits. Often these limits manifest themselves only when it is running in production under real load. Learn in this session how you can get visibility into the JVM internals without requiring host access and without incurring additional overhead on your JVM. Observe the application threads as they transition over time, understand resource utilization, and detect bottlenecks in the code. And get to know how to debug deadlocks and hung threads on a running server by observing stack frames and local variables and how to deal with application memory utilization inefficiencies. Speakers: Michael Avrahamov, Sr. Director of Software Development, Oracle Avi Huber, Senior Director, Oracle Xuemei Xi, Consulting Member of Technical Staff, Oracle She has 10+ of industry experience with a development focus on platform, performance, and performance monitoring and diagnosis
Views: 305 Oracle Developers
Core Java with OCJP/SCJP: Exception Handling Part-1 || Introduction
 
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Views: 315767 Durga Software Solutions
Hibernate Tutorial #8 - Test the JDBC Connection
 
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FULL COURSE: Spring MVC and Hibernate (200+ videos) - http://www.luv2code.com/full-spring ---- This Hibernate tutorial series will help you quickly get up to speed with Hibernate. ---- DOWNLOAD SOURCE CODE for Hibernate tutorial. http://www.luv2code.com/hibernate-tutorial/ ---- View more videos on the playlist, Hibernate Tutorial: https://goo.gl/UKAdaq ---- Follow luv2code for more Hibernate tutorials: Website: http://www.luv2code.com YouTube: http://goo.gl/EV6Kwv Twitter: http://goo.gl/ALMzLG Facebook: http://goo.gl/8pDRdA --- If you liked my Hibernate tutorial, then join my mailing list: Get exclusive access to new Java tutorials. - http://www.luv2code.com/joinlist --- Questions or problems about this Hibernate tutorial? Post them in the comments section below. --- Want to suggest a video for my Hibernate tutorial? Leave a comment below. I'm always looking for new video ideas. Let me know what video you'd like for me to create for this Hibernate tutorial. --- Hibernate Tutorial Transcript In this video, we're going to test our JDBC connection. In the previous video, we did a lot of work with downloading JAR files. What I want to do hear is just do a very simple test to make sure that our JDBC connection works just fine. What we're going to do is create a very simple JDBC program, just to test everything out, just to make sure everything works out okay. What I would like to do, is move into this hibernate tutorial under the source. I'll create a new package. Right click, I'll say New Package. The actual name of the package, I'll call it com.luv2code.jdbc. Once you're happy with that package name, go ahead and click on finish. Now what I would like to do is actually create a new class. Again, right click on that package name. I'll say New Class. The actual name that I'll use for this class, I'll call it Testjdbc. Just very simple, and to the point. I'll also check the low item here for public static void, just so I can have a main method for this program. Then again, hit on Finish. All right, great. We have a very basic program here and let's go ahead and dig in. Let's start writing some code. I have a very simple try catch block. I have catch exception EXC. I'll do the EXC.print stack trace in case something goes wrong. Hopefully not. What I'll do is I'll just set up some variables here for my database connection information. First off, I'll set up my JDBC URL. I'll call it JDBC:mysequel:localhost3306/ I give the name of my database scheme, which is hbstudenttracker. Here I'll say use SSL=false. Just so that I don't get that pesky SSL warning that my sequel introduced recently, which is really annoying. Anyway, use SSL will make that go away. All right, so that's how JDBC URL, our user ID that we created, and we did all this stuff in previous slides here. Our user is HBStudent. We have this very secure system where our password is the same as our username. Only for training purposes, right? Okay, good. All right, so our URL, user ID, and password, great. We can use this information to actually give us a connection to a database. All right. Here, I'm just mentioning again that use SSL as equals false as to get rid of that pesky my sequel SSL warnings. All right, great. Let's go ahead and write some code here. I'm going to make use of my driver manager to get a connection. I'll also do some system out print lines here to tell myself what's going on here. All right, so I'll say system out print line, connecting to database. I'll just drop in that JDBC URL. Then I'll attempt to get a connection. Here I'll say connectionmycon=, and then I say driver manager.getconnection. I pass in my JDBC URL, my user ID, and my password. If that works out fine, then we have a successful connection. I can print a statement here saying connection successful. Yah-hoo. I like to have fun with this stuff. All right, so that's the piece there. Now, we need to fix some of our imports here. I can just click on this red X. We need to do that import on java.sql, so choose the second option here. Import Connection, and java.sql. Select that item. Yeah, that takes care of the item then. We should be good to go here. All right, so just some very basic code here to test out our database connection. Let's go ahead and run this application. I just do a right click, Run As, Java Application. Then it's going to fire up, and say connection successful. Let me expand this window here, so you can see everything. Connecting to database, connection successful. This is great. This is just a confirmation that we have the correct URL, user ID, and password. Also, more importantly, is that JDBC driver that we have on our lib directory, is associated with our class path. Know that we can get a valid connection. [Snip] for complete transcript, select More ... Transcript This is the end of the Hibernate tutorial transcript.
Views: 18691 luv2code
Video Stack Java
 
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Views: 86 ayu penta
Java EE, Jakarta EE, MicroProfile, Or Maybe All Of Them?  by Sebastian Daschner
 
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Subscribe to Devoxx on YouTube @ https://bit.ly/devoxx-youtube Like Devoxx on Facebook @ https://www.facebook.com/devoxxcom Follow Devoxx on Twitter @ https://twitter.com/devoxx It seem that more and more enterprise technology is emerging that is based on Java EE. There are a lot of options to choose from, between Java EE, what is now Jakarta EE, MicroProfile, and combinations of their APIs. If we look at available application containers the number of possibilities are even higher. Which platforms, particular standards and runtimes should enterprise developers base their applications on in year 2018? This session shows the difference between Java EE, Jakarta EE, MicroProfile and their individual specifications. We’ll how their APIs complement each other and enable us to develop applications with focus on high productivity using well-known APIs Especially cloud native applications require a few additional technical concerns, such as telemetry and resiliency that are added by the recent MicroProfile specifications. We will also see a comparison of Java Enterprise runtimes, which containers support MicroProfile, which deployment models are there, and what choice makes sense for different technology stacks. Sebastian Daschner From Sebastian Daschner - IT-Beratung Sebastian Daschner is a self-employed Java consultant, author and trainer and is enthusiastic about programming and Java (EE). He is the author of the book ‘Architecting Modern Java EE Applications’. Sebastian is helping to form the standards of Java EE and Jakarta EE, serving in the JAX-RS, JSON-P and Config Expert Groups and collaborating on various open source projects. For his contributions in the Java community and ecosystem he was recognized as a Java Champion, Oracle Developer Champion and double 2016 JavaOne Rockstar. Besides Java, Sebastian is also a heavy user of Linux and Cloud Native technologies. He evangelizes computer science practices on his blog, his newsletters, and on Twitter. He loves to travel —  by plane or motorcycle.
Views: 1604 Devoxx
Building Microservices with Java 9 Module System and Vert x
 
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Uday Tatiraju Principal Member of Technical Staff Oracle JDK 9’s Java Platform Module System (JPMS) is a performant and scalable platform which provides strong encapsulation and reliable configuration. It can be combined with Vert.x toolkit to build resilient and responsive microservices. The main intention of this talk is to detail the design and development of microservices using JPMS and the Vert.x toolkit. We'll construct the application from a host of loosely coupled modules that communicate over well defined interfaces. We'll use open tracing framework to monitor them, and deploy to Oracle container cloud service, briefly touching upon how easily scalable the application is while using OPC. We'll also discuss various challenges while working with non-modular jars and possible solutions.
Views: 845 Oracle Developers
Data Structures: Stacks and Queues
 
05:46
Learn the difference between linear data structures stacks and queues. This video is a part of HackerRank's Cracking The Coding Interview Tutorial with Gayle Laakmann McDowell. http://www.hackerrank.com/domains/tutorials/cracking-the-coding-interview?utm_source=video&utm_medium=youtube&utm_campaign=ctci
Views: 164187 HackerRank
Exception Handling Introduction Part-1 video by som sir
 
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In This Exception Handling tutorials Exception Handling introduction i.e types of Exception, Errors also working behavior of Exception and Errors with Proper Example in the Exception Handling Context . Java Training Center (JTC) Noida is specialized for java / j2ee Training only with Real Time Experts. Mail us your requirements to- [email protected] Or Contact us: +91-9990399111 so that our supporting team will arrange Demo Sessions. so for more information visit our http://www.jtcindia.org/ http://www.facebook.com/javatrainingc... http://www.jtcindia.org/course.php?Id=10&page1=JAVA_EXPERTS%20PROGRAM https://twitter.com/jtc_india Java Training Center i.e JTC is professional software training institute in noida and delhi, JTC Provides Practal hands-on training , Summer Trainig , Corporate Training , College Campus Training, Customized Training According to requirement with job assistance on the basis of freshers and experience. JTC is also provides trained man-power/resource on java , j2ee ,Spring ,Struts , hibernate ,XML , Webservices ,EJB. JTC videos URL by Som Sir: JTC Course Details by Som Sir https://goo.gl/yVDmVX 1. Online Core for beginners: https://goo.gl/DTqhCa 2.Online java class :- Object class Methods in java i.e java.lang package https://goo.gl/RhPfwL 3.hashCode , toString , equals methods in Java Object class: https://goo.gl/6BrVQU 4.Core Java Basics classroom recording: https://goo.gl/aXXnJ3 5.Exception Handling in Java https://goo.gl/wTdJdL 6.Multithreading in Java https://goo.gl/jfu1Pw 7.Garbage Collection in Java https://goo.gl/88Eqw8 8.Object Oriented Concepts in java https://goo.gl/xj4cNd 9.Interview Question in java https://goo.gl/659Vi8 10.String Class in Java https://goo.gl/ikvvn1 11. Servlet in java https://goo.gl/xN5CyY 12.JDBC in Java , java data base Connectivity in java https://goo.gl/dz3D6k 13.Enum in Java https://goo.gl/EEaMkN 14. Literals in Java https://goo.gl/DoV8jV Contact JTC i.e Java training Center for any Corporate and College Campus Training at: 9990399111 / 9990699111 Visit: www.jtcindia.org Our Branches: Noida : C-29, Sector-2,Noida Greater Noida: Alpha-1st ,Kasana Tower, Greater Noida. -~-~~-~~~-~~-~- Please watch: "Object Class Methods in java With Examples " https://www.youtube.com/watch?v=bv8SB2a66iw -~-~~-~~~-~~-~-
Views: 1200 JTC INDIA
Java Group Training Session   25th April !
 
01:46:37
Thank you so much for watching java Group Training Session Please Like + Comment + Share + Subscribe my channel http://www.youthsoftwaresolution.com https://twitter.com/YOUTHSOFTWARE https://www.facebook.com/youthsoftwar... https://twitter.com/Sanjeev_Enhance YOUTH SOFTWARE SOLUTION PVT. LTD. This YOUTH SOFTWARE SOLUTION Java Certification tutorial will help you in understanding about the various certifications available for Java professionals. This video helps you to learn java YOUTH SOFTWARE SOLUTION : Java/J2EE and SOA Certification Training Check out our Java Playlist: Subscribe to our channel to get video updates. Hit the subscribe button above. #Java #Javatutorial #Javaonlinetraining #Javaforbeginners #Javacertification How it Works? 1. This is a 7 Week Instructor led Online Course, 45 hours of assignment and 20 hours of project work 2. We have a 24x7 One-on-One LIVE Technical Support to help you with any problems you might face or any clarifications you may require during the course. 3. At the end of the training you will be working on a real time project for which we will provide you a Grade and a Verifiable Certificate! - - - - - - - - - - - - - - - - - About the Course YOUTH SOFTWARE SOLUTION Advanced Java/J2EE and SOA training and certification course is designed for students and professionals who want to be a Java Developer. This is a 42 hour course which will cover both core and advanced Java concepts like Database connectivity, Threads, Exception Handling, Collections, JSP, Servlets, XML Handling etc. We will also learn various Java frameworks like Hibernate and Spring. During our Java/ Certification training, our instructors will help you: 1. Develop the code with various Java data types, conditions and loops. 2. Implement arrays, functions and string handling techniques. 3. Understand object oriented programming through Java using Classes, Objects and various Java concepts like Abstract, Final etc. 4. Implement multi-threading and exception handling. 5. Use parse XML files using DOM and SAX in Java. 6. Write a code in JDBC to communicate with Database. 7. Develop web applications and JSP pages. 8. Interact with the database using hibernate framework. 9. Write code with spring framework components like Dependency Injection and Auto Wiring. 10. Implement SOA using web services. - - - - - - - - - - - - - - - - - - - Who should go for this course? This course is designed for professionals aspiring to become Java Developers. Programmers, Web Developers, Web Designers, Programming Hobbyists, Database Administrators, Youngsters who want to kick start their career are the key beneficiaries of this course. - - - - - - - - - - - - - - - - Exception Handling ? Type of Exception Handling ? Custom Exception class ? What is meaning of exception handling ? Runtime stack mechanism ? Default exception handling in java? Name of exception ? Description ? Location (stack trace )? Exception Hierarchy ? Check and Uncheked Exception ? Customized exception handling by using try-catch-finally? Java Tutorial For Beginners: Java Programming From Scratch,Java Programming - Step by Step tutorial ,learn free java tutorial class sun beginner programming tutorials, download, learn, language, source code, online, core java,Java Tutorial for Beginners - Learning Java in simple and easy steps For more information, please write back to us at [email protected] Call us at US: +91-01165996948 or India: +91-7065602245
How to download and  install  Java JDK in Windows 7/8/10 Vista for 32/64 bits?
 
03:03
In this video, I will show you the installation of JAVA JDK(Java Development Kit). The Java Development Kit (JDK) is an implementation of either one of the Java Platform, Standard Edition, Java Platform, Enterprise Edition, or Java Platform, Micro Edition platforms released by Oracle Corporation in the form of a binary product aimed at Java developers on Solaris, Linux, macOS or Windows. The JDK includes a private JVM and a few other resources to finish the development of a Java Application. Since the introduction of the Java platform, it has been by far the most widely used Software Development Kit (SDK).[citation needed] On 17 November 2006, Sun announced that they would release it under the GNU General Public License (GPL), thus making it free software. This happened in large part on 8 May 2007, when Sun contributed the source code to the OpenJDK. java contents: The JDK has as its primary components a collection of programming tools, including: appletviewer – this tool can be used to run and debug Java applets without a web browser apt – the annotation-processing tool[4] extcheck – a utility that detects JAR file conflicts idlj – the IDL-to-Java compiler. This utility generates Java bindings from a given Java IDL file. jabswitch – the Java Access Bridge. Exposes assistive technologies on Microsoft Windows systems. java – the loader for Java applications. This tool is an interpreter and can interpret the class files generated by the javac compiler. Now a single launcher is used for both development and deployment. The old deployment launcher, jre, no longer comes with Sun JDK, and instead it has been replaced by this new java loader. javac – the Java compiler, which converts source code into Java bytecode javadoc – the documentation generator, which automatically generates documentation from source code comments jar – the archiver, which packages related class libraries into a single JAR file. This tool also helps manage JAR files. javafxpackager – tool to package and sign JavaFX applications jarsigner – the jar signing and verification tool javah – the C header and stub generator, used to write native methods javap – the class file disassembler javaws – the Java Web Start launcher for JNLP applications JConsole – Java Monitoring and Management Console jdb – the debugger jhat – Java Heap Analysis Tool (experimental) jinfo – This utility gets configuration information from a running Java process or crash dump. (experimental) jmap Oracle jmap - Memory Map– This utility outputs the memory map for Java and can print shared object memory maps or heap memory details of a given process or core dump. (experimental) jmc – Java Mission Control jps – Java Virtual Machine Process Status Tool lists the instrumented HotSpot Java Virtual Machines (JVMs) on the target system. (experimental) jrunscript – Java command-line script shell. jstack – utility that prints Java stack traces of Java threads (experimental) jstat – Java Virtual Machine statistics monitoring tool (experimental) jstatd – jstat daemon (experimental) keytool – tool for manipulating the keystore pack200 – JAR compression tool policytool – the policy creation and management tool, which can determine policy for a Java runtime, specifying which permissions are available for code from various sources. VisualVM – visual tool integrating several command-line JDK tools and lightweight[clarification needed] performance and memory profiling capabilities wsimport – generates portable JAX-WS artifacts for invoking a web service. xjc – Part of the Java API for XML Binding (JAXB) API. It accepts an XML schema and generates Java classes. Experimental tools may not be available in future versions of the JDK. The JDK also comes with a complete Java Runtime Environment, usually called a private runtime, due to the fact that it is separated from the "regular" JRE and has extra contents. It consists of a Java Virtual Machine and all of the class libraries present in the production environment, as well as additional libraries only useful to developers, such as the internationalization libraries and the IDL libraries. Copies of the JDK also include a wide selection of example programs demonstrating the use of almost all portions of the Java API. Like, Subscribe & share Support our Channel Tuitions Tonight
Views: 127 Tuitions Tonight
OutOfMemoryError Java Heap Space Fix - Heap Dump Analysis VisualVM Tutorial
 
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In this tutorial I show you how and why a java.lang.OutOfMemoryError can occur when running a Java application. I also show you how to configure your application to perform a Java Heap Dump if an out of memory errors. Additionally; I perform heap dump analysis by importing it into a Java profiling tool such as VisualVM. This will help find the root cause. First I set the Java Heap size to 64m by changing the –Xms and –Xmx virtual machine arguments. What does –Xms stand for? This java virtual machine argument allows you to specify the initial size (bytes) of the java heap. What does –Xmx stand for? This java virtual machine argument allows you to specify the maximum size, in bytes, of the memory allocation pool. We set the java heap memory to such a small size that it can’t handle and save the amount of java objects being created. Once there is not enough memory left to allocate objects, the application will fail with an out of memory error. I then configure the application to perform a Heap Dump on java.lang.OutOfMemoryError by specifying the flag: XX:+HeapDumpOnOutOfMemoryError This heap dump will be present in your applications working directory. If you would like to change the output path of the heap dump you can specify it by passing the: -XX:HeapDumpPath I then proceed to execute the java application which has an infinite loop that will create and place objects on an Array list. The application eventually fell over and threw an OutOfMemoryError when we allocated a Brick Object and tried to place it in the list. The list was at its maximum capacity and tried to resize. An arraylist is backed by an array, which has a finite number of elements. Each time the list’s backing array has reached maximum capacity it defines a new array typically double the size and copies the old array’s contents over into the new array. Then the GC clears the old array. Unfortunately there was not enough room for the new backing array in the Java Heap which caused the application to crash. When the java failure occurred it left the java heap with file name pattern java_pid{process-id}.hprof, this file can then be imported into VisualVM Java profiler for analysis of the applications state when the out of memory error occurred. After importing the hprof file into VisualVM profiler we can analyse the java thread’s status and the memory allocation. We can see the last stack trace before the failure and the huge amount of Brick allocations. If your application ever crashes, it’s good to inspect the heap dump to find out what was going on. This will hopefully identify causes and will prevent future failures if you can put a fix in. If you work with a cloud based ephemeral file system, then you might not be able to create / access a heap dump, as the application’s file system is scrapped and a new application is started on failure. There are ways to work around this such as attaching a hard drive to the instance. It depends on the nature of the system. I hope you enjoyed the tutorial! Don’t forget to subscribe for more great tech videos! Thanks, Philip Eclipse VisualVM Launcher Integration Set-up Guide https://www.youtube.com/watch?v=W60wvJ885iE&t Java Heap Dump Analysis – VisualVM Tutorial https://www.youtube.com/watch?v=Uubqc76h-jo VisualVM https://visualvm.github.io/ Eclipse Visual VM Integration https://visualvm.github.io/idesupport.html Java Profiling http://docs.oracle.com/javase/7/docs/technotes/guides/visualvm/profiler.html What are the -xms and -xmx parameters when starting JVMs? https://stackoverflow.com/questions/14763079/what-are-the-xms-and-xmx-parameters-when-starting-jvms
Views: 6897 Philip Starritt
Basics of jdbc programming Tutorial-6(ResultSet interface part-2)
 
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this video deals with the ResultSet interface and different methods inside in .we came to know about the use of concurrency and updatation in ResultSet object with java codes. import java.sql.*; class Jdbc { public static void main(String args[])throws Exception { Connection con=null; Statement st=null; ResultSet rs=null; String query=null; try { Class.forName("oracle.jdbc.driver.OracleDriver"); con=DriverManager.getConnection("jdbc:oracle:thin:@localhost:1521:xe","student","shubham123"); if(con!=null) { System.out.println("connection established"); st=con.createStatement(ResultSet.TYPE_SCROLL_SENSITIVE,ResultSet.CONCUR_UPDATABLE); } if(st!=null) { System.out.println("statement object created"); query="select * from emp026"; rs=st.executeQuery(query); if(rs.next()==true) { //getting the record of 3rd row rs.absolute(3); System.out.println("the 3rd row is"); System.out.println(rs.getInt(1)+" "+rs.getString(2)+" "+rs.getString(3)+" " +rs.getInt(4)+" "+rs.getString(5)+" "+rs.getString(6)); //getting the record of 1st row System.out.println("the 1st row is"); rs.first(); System.out.println(rs.getInt(1)+" "+rs.getString(2)+" "+rs.getString(3)+" " +rs.getInt(4)+" "+rs.getString(5)+" "+rs.getString(6)); //getting the record of last row System.out.println("the last row is"); rs.last(); System.out.println(rs.getInt(1)+" "+rs.getString(2)+" "+rs.getString(3)+" " +rs.getInt(4)+" "+rs.getString(5)+" "+rs.getString(6)); } } } catch(SQLException e) { e.printStackTrace(); } catch(ClassNotFoundException e) { e.printStackTrace(); } catch(Exception e) { e.printStackTrace(); } finally { st.close(); con.close(); } } } //updation in ResulSet import java.sql.*; class Jdbc { public static void main(String args[])throws Exception { Connection con=null; Statement st=null; ResultSet rs=null; String query=null; try { Class.forName("oracle.jdbc.driver.OracleDriver"); con=DriverManager.getConnection("jdbc:oracle:thin:@localhost:1521:xe","student","shubham123"); if(con!=null) { System.out.println("connection established"); st=con.createStatement(ResultSet.TYPE_SCROLL_SENSITIVE,ResultSet.CONCUR_UPDATABLE); } if(st!=null) { System.out.println("statement object created"); query="select salary from emp026 where ename='AMAR'"; rs=st.executeQuery(query); while(rs.next()) { double sal=(rs.getDouble(1)); rs.updateDouble("Salary",sal*1.2); rs.updateRow(); } rs=st.executeQuery("select * from emp026"); while(rs.next()) { System.out.println(rs.getDouble(3)); } } } catch(SQLException e) { e.printStackTrace(); } catch(ClassNotFoundException e) { e.printStackTrace(); } catch(Exception e) { e.printStackTrace(); } finally { st.close(); con.close(); } } }
Views: 180 Learn it by Fun
BIG DATA #9 «Анализ производительности Хадуп-кластера» Игорь Бобак, EPAM Systems
 
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«Анализ производительности Хадуп-кластера» Игорь Бобак, EPAM Systems Как можно осуществлять профайлинг производительности Хадуп-кластера, собирать stack trace у MapReduce приложений,визуализировать их с помощью Flame Graph и находить узкие места в коде распределенного Java приложения,а также решать проблемы с конфигурацией или железом.
Views: 789 Belarus Big Data
Erro do Technic launcher (Me ajuda)
 
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Leia a descrição Crash report :---- Minecraft Crash Report ---- // Daisy, daisy... Time: 18/07/18 15:25 Description: Initializing game org.lwjgl.LWJGLException: Pixel format not accelerated at org.lwjgl.opengl.WindowsPeerInfo.nChoosePixelFormat(Native Method) at org.lwjgl.opengl.WindowsPeerInfo.choosePixelFormat(WindowsPeerInfo.java:52) at org.lwjgl.opengl.WindowsDisplay.createWindow(WindowsDisplay.java:252) at org.lwjgl.opengl.Display.createWindow(Display.java:306) at org.lwjgl.opengl.Display.create(Display.java:848) at org.lwjgl.opengl.Display.create(Display.java:757) at org.lwjgl.opengl.Display.create(Display.java:739) at net.minecraft.client.Minecraft.func_71384_a(Minecraft.java:452) at net.minecraft.client.Minecraft.func_99999_d(Minecraft.java:878) at net.minecraft.client.main.Main.main(SourceFile:148) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) at java.lang.reflect.Method.invoke(Unknown Source) at net.minecraft.launchwrapper.Launch.launch(Launch.java:135) at net.minecraft.launchwrapper.Launch.main(Launch.java:28) A detailed walkthrough of the error, its code path and all known details is as follows: --------------------------------------------------------------------------------------- -- Head -- Stacktrace: at org.lwjgl.opengl.WindowsPeerInfo.nChoosePixelFormat(Native Method) at org.lwjgl.opengl.WindowsPeerInfo.choosePixelFormat(WindowsPeerInfo.java:52) at org.lwjgl.opengl.WindowsDisplay.createWindow(WindowsDisplay.java:252) at org.lwjgl.opengl.Display.createWindow(Display.java:306) at org.lwjgl.opengl.Display.create(Display.java:848) at org.lwjgl.opengl.Display.create(Display.java:757) at org.lwjgl.opengl.Display.create(Display.java:739) at net.minecraft.client.Minecraft.func_71384_a(Minecraft.java:452) -- Initialization -- Details: Stacktrace: at net.minecraft.client.Minecraft.func_99999_d(Minecraft.java:878) at net.minecraft.client.main.Main.main(SourceFile:148) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) at java.lang.reflect.Method.invoke(Unknown Source) at net.minecraft.launchwrapper.Launch.launch(Launch.java:135) at net.minecraft.launchwrapper.Launch.main(Launch.java:28) -- System Details -- Details: Minecraft Version: 1.7.10 Operating System: Windows 10 (amd64) version 10.0 Java Version: 1.8.0_181, Oracle Corporation Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation Memory: 779467456 bytes (743 MB) / 1029177344 bytes (981 MB) up to 1029177344 bytes (981 MB) JVM Flags: 3 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xms1024m -Xmx1024m AABB Pool Size: 0 (0 bytes; 0 MB) allocated, 0 (0 bytes; 0 MB) used IntCache: cache: 0, tcache: 0, allocated: 0, tallocated: 0 FML: Launched Version: 1.7.10-Forge10.13.4.1558-1.7.10 LWJGL: 2.9.1 OpenGL: ~~ERROR~~ RuntimeException: No OpenGL context found in the current thread. GL Caps: Is Modded: Definitely; Client brand changed to 'fml,forge' Type: Client (map_client.txt) Resource Packs: [] Current Language: ~~ERROR~~ NullPointerException: null Profiler Position: N/A (disabled) Vec3 Pool Size: 0 (0 bytes; 0 MB) allocated, 0 (0 bytes; 0 MB) used Anisotropic Filtering: Off (1)
Views: 154 O Tal Do Noob
vJUG Panel: What do the Oracle/Google shenanigans mean to the Java Developer?
 
01:28:31
Recent news about the legal battle which Oracle and Google have been involved with in the courts has made many Java developers wonder what this actually means to them. Should they be careful about what and how they code in the future to avoid legal repercussions? What do they need to understand or know going forward? Is this just a problem for Java or development in general? This session led by some of the key Java stalwarts in our industry, including Bruno Souza, Martijn Verburg, Hildeberto Mendonça, Lukas Eder, Michael Rice and moderated by Simon Maple, will aim to provide opinions of what the news means to them. Note, nobody on the team are lawyers, so seek professional legal advice if you rely on it. This session will be in discussion format and will be heavily focused on Q&A by the audience. Here is more info on our panel: Bruno Souza Bruno Souza is a Java Developer and Open Source Evangelist at Summa Technologies, and a Cloud Expert at ToolsCloud. Nurturing developer communities is a personal passion, and Bruno worked actively with Java, NetBeans, Open Solaris, OFBiz, and many other open source communities. As founder and coordinator of SouJava (The Java Users Society), one of the world's largest Java User Groups, Bruno leaded the expansion of the Java movement in Brazil. Founder of the Worldwide Java User Groups Community, Bruno helped the creation and organization of hundreds of JUGs worldwide. A Java Developer since the early days, Bruno participated in some of the largest Java projects in Brazil. Martijn Verburg Martijn Verburg (aka 'the Diabolical Developer'), CTO of jClarity, herds Cats in the Java/open source communities and is constantly humbled by the creative power to be found there! Currently he resides in London where he co-leads the London JUG (a JCP EC member), runs the Adopt a JSR and Adopt OpenJDK programs and drinks good beer at his local pub. You can find him on-line facilitating development of FOSS projects (PCGen and Ikasan), moderating at the Javaranch or discussing (ranting about?) subjects on the Programmers Stack Exchange. He's become a regular (diabolical) speaker at conferences on Java, FOSS and software development and has recently wrapped up his first Manning title - "The Well-Grounded Java Developer" with his co-author Ben Evans. Hildeberto Mendonça Hildeberto Mendonça is a Java Architect at the Université catholique de Louvain, Belgium, and holds a Ph.D in Applied Sciences by the same University. He has been working professionally with Java in the last 14 years and he accumulates 10 years of experience as a JUG Leader of the CEJUG Community (Ceará, Brazil). He spends his free time writing technical articles, developing Yougi and having fun with his family. Lukas Eder Lukas Eder is the head of R&D at Data Geekery, the company behind jOOQ. He has been working with Java and SQL passionately for the last 8 years, being specifically interested in the design of comprehensive fluent APIs and internal DSLs. Lukas is a very active international speaker and writer of technical articles, spreading SQL love among Java developers furiously. In his free time, he can easily be talked into playing board games or the occasional hike in the Swiss mountains.  Michael Rice Michael just recently joined Red Hat Consulting as a consultant focused on open source middleware technologies like JBoss. He is also a lawyer licensed in California and Washington State. During law school he worked for an intellectual property firm primarily prosecuting software patents and advising clients on licensing issues and currently practices in the same areas for clients in California and Washington. After law school, he clerked for two years for a federal judge. He graduated magna cum laude from Seattle University School of Law and was an emeritus member of the law review. He has been writing Java code since the only IDE was Notepad and has been involved in the open source community since the 1990s.
Views: 759 v JUG
[Java #38] Kivételkezelés alapjai
 
48:43
Ebben a videóban a kivételkezelés alapvető fogalmaival ismerkedünk meg, mi az a hívási lánc vagy stack trace, hogyan hat a program vezérlésére egy kivétel keletkezése illetve hogyan tudunk kivételkezelőt írni Java-ban. Forrás: https://docs.oracle.com/javase/tutorial/essential/exceptions/index.html A teljes sorozat: https://www.youtube.com/playlist?list=PL45FGlNxfdFRE8KjfeI0Ezh32KtS6gOGs
Views: 0 Zoltán Molnár
Apache Camel - Integrate with mysql db using sql queries
 
09:22
Apache Camel Tutorial- Integrate with MySQL DB using SQL query https://www.javainuse.com/camel/camelsql
Views: 4328 JavaInUse
Java 8 New Features  FREE Online Workshop in DURGASOFT
 
00:35
LINK: https://attendee.gotowebinar.com/register/7281543634812202243 Course Content -------------------------------------- 1. lambda Expressions 2. Functional Interfaces 3. Default methods in Interface 4. Static Methods in Interfaces. 5. Predicate 6. Function 7. Consumer 8. Supplier 9. Method refernce & constructor reference by Double colon(::) operator. 10 Stream API 11. Date & Time API ( Joda API) ================================== Java 8 features Features of java 8 Java 8 stream and more Java lambda and more Java 8 tutorial Java 8 features with examples Java 8 streams tutorial Java 8 Lambda Basics Java 8 Features Tutorial =================================== Oracle Java Certification: Shortest Way To Crack OCA 1Z0-808 Just @ Rs 640/- 1. For Java SE 8 Programmer I Exam 2. Topic wise Tests and Grand Tests 3. 280 Realistic Questions With Clear Explanation 4. Study Material (408 Pages) 5. Question Bank (107 Pages) 6. Videos (63 Sessions) Use the below links to access Durga Sir Videos and Downloadable Materials and Topic wise Tests and Grand Tests with Life-Time Access. 1. Oracle Java Certification: Shortest Way To Crack OCA 1Z0-808 Link: https://goo.gl/vcMKjz 2. Java 8 New Features In Simple Way Link: https://goo.gl/F2NfZi 3. Java 9 New Features In Simple Way: JShell, JPMS and More Link: https://goo.gl/s9PP1p 4. Complete JDBC Programming Part-1 Link: https://goo.gl/uT9sav 5. Complete JDBC Programming Part-2 Link: https://goo.gl/VmhM7t For More Info: DURGASOFT Online Team mail: [email protected] Ph:8885252627,7207212427/28
java.lang.OutOfMemoryError: Java heap space
 
13:52
java.lang.OutOfMemoryError: Java heap space Troubleshooting Guide for beginners Reference: http://javaeesupportpatterns.blogspot.com/2011/11/outofmemoryerror-java-heap-space.html
Baking a Microservice PI(e) by Antonio Goncalves and Roberto Cortez
 
02:44:23
Imagine you have several microservices exposing REST APIs. Imagine now that these microservices are spread all over and need to talk to each other. Imagine that you have a nice user interface interacting with these APIs where you can authenticate. And now, imagine that all this runs smoothly. In this Deep Dive session, Roberto and Antonio will build, step by step, a full microservice architecture (using different languages and frameworks). This session will answer these questions: How to build, document and deploy several microservices spread on different nodes (we use a Raspberry PI cluster, because the Cloud is too expensive) How to make those microservices talk to each other (Eureka for registry and discovery) How to scale up, down, and deal with network failures (Ribbon and Zuul to the rescue) How to deal with high traffic (Hystrix, here you come) How to monitor this distributed system (Dropwizard metrics with the ELK stack) How to centralize configuration (Archaius) How to trace calls (Zipkin) How to authenticate and manage authorization with JWT (Tribestream Access Gateway) How to have a centralized nice looking entry point (with Angular) # Antonio Goncalves Antonio is a senior developer specialized in Java/Java EE. As a consultant he advises customers and helps them in defining and developing their software architecture. This Java Champion is also the founder of the very successful Paris JUG, Devoxx France and an independent JCP member on various JSRs (Java EE 6, Java EE 7, Java EE 8). Based on his Java EE experiences, he has written three books covering Java EE 5, Java EE6 and recently Java EE 7. # Roberto Cortez Roberto Cortez is a passionate Java Developer with more than 10 years of experience; mainly the Finance sector. He is involved within the Open Source Community to help other individuals spread the knowledge about Java EE technologies. He is a regular speaker at conferences like JavaOne, Devoxx, JFokus, and others, leads the Coimbra JUG and enjoys writing blog posts. He is very excited to be a Triber; he now has the opportunity to work on the servers where everything happens, instead of just developing applications that run in a container. When he is not working, he hangs out with friends, play computer games and spends time with family.
Views: 2445 Devoxx
Innovative Testing Techniques with Bytecode Instrumentation
 
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Bytecode instrumentation is a powerful technique that enables you to inject arbitrary behavior into your Java code. It can be useful in testing/debugging, enabling code to be temporarily added during a test run and having no impact on your production-ready application. This presentation attempts to demystify the process of bytecode instrumentation. It includes an overview of what is possible and why you might want to try the technique, followed by a practical example of how bytecode instrumentation is done and how the speaker has used it in the testing of real applications. Copyright © 2013 Oracle and/or its affiliates. Oracle® is a registered trademark of Oracle and/or its affiliates. All rights reserved. Oracle disclaims any warranties or representations as to the accuracy or completeness of this recording, demonstration, and/or written materials (the "Materials"). The Materials are provided "as is" without any warranty of any kind, either express or implied, including without limitation warranties of merchantability, fitness for a particular purpose, and non-infringement.
One VM to Rule Them All by Thomas Wuerthinger
 
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Graal is a new just-in-time compiler for the Java Virtual Machine with support for the Truffle polyglot framework. Integrated language runtimes include JavaScript, Ruby, and R. Additionally, it supports LLVM-based languages such as C, C++, Go, and Rust. Graal enables seamless language interoperability while also providing world-class performance for each individual language. A demo will show how JavaScript, Java, Ruby, R, and C can work together in a single web application running in one VM!
Views: 3746 Devoxx
1Z0-811 – Java Exam Foundations Test Novice-Level Questions
 
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For more information on Oracle 1Z0-811 Practice Test Questions Please Visit: https://www.Pass-Guaranteed.com/1Z0-811.htm What am I going to be tested for? The 1Z0-811 Java Foundations novice-level exam candidate will be tested for knowledge in topics such as: Using Decision Statements, Using Looping Statements, Working with the String Class, Working with Java Data Types, Arrays and ArrayLists, Debugging and Exception Handling, Java Methods, Basic Java Elements and more. Which are some of the topics of the 1Z0-811 novice-level exam? Test Topic 1: What Is 1Z0-811 Java? Questions (Exam Coverage 19%) Test Topic 2: 1Z0-811 Java Basics Questions (Exam Coverage 21%) Test Topic 3: Basic Exam Java Elements Questions (Exam Coverage 16%) Test Topic 4: Working with Test Java Data Types Questions (Exam Coverage 20%) Test Topic 5: Working with 1Z0-811 Java Operator Questions (Exam Coverage 14%) Test Topic 6: Working with the String Test Class Questions (Exam Coverage 15%) Who can attend to the Java Foundations novice-level test? This is a novice-level exam for candidates who are students at secondary schools, 2-year colleges and 4-year colleges and universities. If you are seeking a more career-level certification, you may consider Java SE 8 Programmer I or Java SE 7 Programmer I. Those exams are more appropriate for candidates who have completed training though Oracle University or Oracle's WDP program. Can you give me some in-depth information on the 1Z0-811 exam topics? • Describe the features of 1Z0-811 Java • Describe the real-world applications of 1Z0-811 Java • Compile and execute a Java test program • Describe the exam java.lang package • Declare and initialize a String questions variable • Use arithmetic assignment Oracle operators What’s the 1Z0-811 passing score and duration? The duration of this exam is 150 minutes (75 questions) and a minimum passing score of 65%.
Views: 2420 Orsan Stubell
L2C Benchmarks, or How I Learned to Stop Worrying and Love JMH
 
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Andres Almiray, Principal Consultant, Trivadis AG The Java Persistence API (JPA) is the go-to solution for writing the persistence layer in many enterprise and cloud-enabled applications. There are many tricks that can be applied to make the application performant, and one in particular is the configuration of the second-level cache (L2C for short). This session presents a real use case, searching for the optimal configuration of different JPA and L2C combinations. It includes a walk-through of the approach taken, from naive measurements and first tests to, ultimately, JMH benchmarks.
Views: 116 Oracle Developers
BUG DO MINECRAFT HELPPP
 
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---- Minecraft Crash Report ---- // Don't be sad, have a hug! Time: 24/01/18 11:26 Description: Initializing game org.lwjgl.LWJGLException: Pixel format not accelerated at org.lwjgl.opengl.WindowsPeerInfo.nChoosePixelFormat(Native Method) at org.lwjgl.opengl.WindowsPeerInfo.choosePixelFormat(WindowsPeerInfo.java:52) at org.lwjgl.opengl.WindowsDisplay.createWindow(WindowsDisplay.java:252) at org.lwjgl.opengl.Display.createWindow(Display.java:306) at org.lwjgl.opengl.Display.create(Display.java:848) at org.lwjgl.opengl.Display.create(Display.java:757) at org.lwjgl.opengl.Display.create(Display.java:739) at bao.ag(SourceFile:340) at bao.f(SourceFile:713) at net.minecraft.client.main.Main.main(SourceFile:148) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) at java.lang.reflect.Method.invoke(Unknown Source) at net.minecraft.launchwrapper.Launch.launch(Launch.java:135) at net.minecraft.launchwrapper.Launch.main(Launch.java:28) A detailed walkthrough of the error, its code path and all known details is as follows: --------------------------------------------------------------------------------------- -- Head -- Stacktrace: at org.lwjgl.opengl.WindowsPeerInfo.nChoosePixelFormat(Native Method) at org.lwjgl.opengl.WindowsPeerInfo.choosePixelFormat(WindowsPeerInfo.java:52) at org.lwjgl.opengl.WindowsDisplay.createWindow(WindowsDisplay.java:252) at org.lwjgl.opengl.Display.createWindow(Display.java:306) at org.lwjgl.opengl.Display.create(Display.java:848) at org.lwjgl.opengl.Display.create(Display.java:757) at org.lwjgl.opengl.Display.create(Display.java:739) at bao.ag(SourceFile:340) -- Initialization -- Details: Stacktrace: at bao.f(SourceFile:713) at net.minecraft.client.main.Main.main(SourceFile:148) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) at java.lang.reflect.Method.invoke(Unknown Source) at net.minecraft.launchwrapper.Launch.launch(Launch.java:135) at net.minecraft.launchwrapper.Launch.main(Launch.java:28) -- System Details -- Details: Minecraft Version: 1.7.10 Operating System: Windows 8.1 (x86) version 6.3 Java Version: 1.7.0_80, Oracle Corporation Java VM Version: Java HotSpot(TM) Client VM (mixed mode), Oracle Corporation Memory: 99246984 bytes (94 MB) / 136712192 bytes (130 MB) up to 523501568 bytes (499 MB) JVM Flags: 6 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xmx512M -XX:+UseConcMarkSweepGC -XX:+CMSIncrementalMode -XX:-UseAdaptiveSizePolicy -Xmn128M AABB Pool Size: 0 (0 bytes; 0 MB) allocated, 0 (0 bytes; 0 MB) used IntCache: cache: 0, tcache: 0, allocated: 0, tallocated: 0 Launched Version: 1.7.10-OptiFine_HD_U_E3 LWJGL: 2.9.1 OpenGL: ~~ERROR~~ RuntimeException: No OpenGL context found in the current thread. GL Caps: Is Modded: Very likely; Jar signature invalidated Type: Client (map_client.txt) Resource Packs: [] Current Language: ~~ERROR~~ NullPointerException: null Profiler Position: N/A (disabled) Vec3 Pool Size: 0 (0 bytes; 0 MB) allocated, 0 (0 bytes; 0 MB) used Anisotropic Filtering: Off (1) OptiFine Version: OptiFine_1.7.10_HD_U_E3 Render Distance Chunks: 8 Mipmaps: 4 Anisotropic Filtering: 1 Antialiasing: 0 Multitexture: false Shaders: null OpenGlVersion: null OpenGlRenderer: null OpenGlVendor: null CpuCount: 2 #@[email protected]# Game crashed! Crash report saved to: #@[email protected]# C:\Users\gabri\AppData\Roaming\.minecraft\crash-reports\crash-2018-01-24_11.26.07-client.txt
Views: 240 GabeGamer
ORACLE DML ERROR LOGS/ DBMS_ERRLOG / شرح عربي
 
07:35
ORACLE DML ERROR LOGS/ DBMS_ERRLOG / شرح عربي ------- select employee_id , first_name||' '||last_name name from employees create table emp_c ( employee_id number, ename varchar2(15) ); insert into emp_c select employee_id , first_name||' '||last_name name from employees ---the solution exec dbms_errlog.create_error_log('emp_c'); desc err$_emp_c insert into emp_c select employee_id , first_name||' '||last_name name from hr.employees log errors reject limit unlimited; select * from err$_emp_c
Views: 748 khaled alkhudari
Fix an Error. emSigner(DSC) failed to Establish
 
03:16
Vedanta Educational Academy in Secunderabad, Hyderabad is a top player in the category Tally Training Institutes in the Hyderabad. ... Vedanta Educational Academy in Secunderabad has a wide range of products and services to cater to the varied ... Call : 9490028406, visit for more info http://vedantaeducationalacademy.com/ Courses Available : Computer Basics, Tally, Accounting Package, GST, Income Tax, TDS, Spoken English, 100% Placement assurance, Services : :: GST Registration, IT Filing, ROC, Firm Registration, Auditing, Accounting, Buy Tally Online : : http://tallysolutions.store/ Vedanta Educational Academy in Secunderabad, Hyderabad is a top player in the category Tally Training Institutes in the Hyderabad. ... Vedanta Educational Academy in Secunderabad has a wide range of products and services to cater to the varied ... Call : 9490028406, visit for more info http://vedantaeducationalacademy.com/ Courses Available : Computer Basics, Tally, Accounting Package, GST, Income Tax, TDS, Spoken English, 100% Placement assurance, Services : :: GST Registration, IT Filing, ROC, Firm Registration, Auditing, Accounting, Buy Tally Online : : http://tallysolutions.store/ .v. DISCLAIMER ******** This video is my(RR's Vedanta Educational Academy) general guide meant for learning purposes only. All the instructions, references, content or documents are for educational purposes only and do not constitute a legal advice. We do not accept any liabilities whatsoever for any losses caused directly or indirectly by the use/reliance of any information contained in this video or for any conclusion of the information. Prior to acting upon this video, you're suggested to seek the advice of your financial, legal, tax or professional advisors as to the risks involved may be obtained and necessary due diligence, etc may be done at your end You need to perform the below steps 1) Make sure your DSC is registered and USB token is plugged in. 2) Run emSignerGSTN as Administrator 3) In "Configure Java" add https://127.0.0.1:1585 to the exception list 4) In chrome browser open https://127.0.0.1:1585 and accept/proceed/advanced the certificate warning 5) Open another chrome browser, login to GST website and submit your return The only solution is that please UNINSTALL your old version emsigner first. If any DSC token softwares- ePass, TrustKey etc- installed it also should be uninstalled. Download latest version 2.6 from https://tutorial.gst.gov.in/installers/dscemSigner/emsigner-2.6.msi https://www.gst.gov.in/help/docsigner http://www.oracle.com/technetwork/java/javase/downloads/index.html For more Updates Visit Channel https://www.youtube.com/c/RRsInstituteofLearning 123
IBM Support Assistant Garbage Collection and Memory Visualizer tool
 
12:51
GCMV provides analysis and views of your applications verbose gc output. GCMV uses a powerful statistical analysis engine which provides tuning recommendations in these areas: - Memory Leak Detection Detect Java heap exhaustion and memory leaks Detect "native" (malloc) heap exhaustion and memory leaks - Optimizing garbage collection performance Analyze output from different gc modes (optthruput, optavgpause, gencon, balanced ) Compare output from multiple logs -- side by side Determine gc overhead, detect long or frequent gc cycles and causes Recommend settings to avoid long or frequent gc cycles Recommend optimum gc policy - Fine tuning of Java heap size Determine peak and average memory usage Recommend Java heap settings Flexible user interface makes it possible to carry out further analysis of the data and to "drill down" into the causes of trends and export of data into .csv or jpeg Oracle Java Mission Control (JMC) is free for development use only. JMC does provide data visualization, but it does not make tuning recommendations, nor does it compare various run results side by side. This is a major usability issue.
Views: 7981 IBMadvantage
How to enable JDBC spy logging for domain DB (Oracle)
 
12:31
This video describes how to enable JDBC spy logging for domain database (Oracle) in PowerCenter 9.5.x.
Views: 931 Informatica Support