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File Upload Example in Servlet and JSP

Uploading File to server using Servlet and JSP is a common task in Java web application. Before coding your Servlet or JSP to handle file upload request, you need to know little bit ...
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How to create Thread Pools using Java 5 Executor Framework

Java 5 introduced Thread pool in Java in form of Executor framework, which allows Java programmer to decouple submission of task to execution of task. If you are doing server side programming ...
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10 XML Interview questions and answers for Java Programmer

XML Interview questions are very popular in various programming job interviews, including Java interviews for web developer. XML is a matured technology and often used as standard for ...
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Hibernate: save vs persist and saveOrUpdate

What is difference between save and saveOrUpdate or Difference between save and persist ...
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Measure execution time in Java – Spring StopWatch Example

There are two ways to measure elapsed execution time in Java either by using System.currentTimeinMillis() or by using System.nanoTime() ...
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Spring JDBC Database connection pool setup

Setting up JDBC Database Connection Pool in Spring framework is easy for any Java application, just matter of changing few configuration in spring configuration file.If ...
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10 Object Oriented Design principles for the Java programmer

Object Oriented Design Principles are core of OOPS programming but I have seen most of Java programmer chasing design patterns like Singleton pattern , Decorator pattern ...
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Java Concurrency – CyclicBarrier Example

CyclicBarrier in Java is a synchronizer introduced in JDK 5 on java.util.Concurrent package along with other concurrent utility like Counting ...
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Builder Design pattern in Java

Builder design pattern in Java is a creational pattern i.e. used to create objects, similar to factory method design pattern which is also creational design pattern. Before ...
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Java Generics Interview Questions

Generic interview questions in Java interviews are getting more and more common with Java 5 around there for considerable time and many application either moving to Java ...
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