Hibernate: save vs persist and saveOrUpdate

What is difference between save and saveOrUpdate or Difference between save and persist are common interview question in any Hibernate…

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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…

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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…

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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…

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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…

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