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Core Java
Difference between Abstract Class and Interface in java
Some of the popular interview questions are “What are the differences between abstract class and interface”, “When will you use…
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Core Java
How HashMap works in java
Most common interview questions are “How HashMap works in java”, “How get and put method of HashMap work internally”. Here…
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Core Java
Externalizable in java
Before understanding Externalizable interface, you need to have idea about Serialization.You can read more about Serialization at Serialization in java.…
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Core Java
Serialization in java
Java provides mechanism called serialization to persists java objects in a form of ordered or sequence of bytes that includes…
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Core Java
Template method design pattern in Java
Template method pattern is a behavioral design pattern which provide base method for algorithm,called template method which defers some of…
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Core Java
Difference between Comparator and Comparable in Java
One of the common interview question is ‘What are differences between Comparator and Comparable’. or ‘How will you sort collection…
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Core Java
Observer design pattern in Java
As the name suggests it is used for observing some objects.Observer watch for any change in state or property of…
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Enterprise Java
JAXB tutorial – Getting Started
Note: Check out our JAXB Tutorial for Java XML Binding – The ULTIMATE Guide What is JAXB? JAXB stands for…
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Enterprise Java
Hibernate inheritance: Table per class hierarchy
In this tutorial we will see how to implement inheritance in hibernate.There are 3 ways in which you can implement…
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