Java Development
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How Set/HashSet works internally in Java
This is one of frequently asked java questions in interviews. However, not many programmers know that HashSet uses HashMap internally…
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Play! Framework Json Example
As we’ve seen in our previous example, Play! is a powerful web mvc framework. Among other stuff, Play has support…
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Maven Antrun Plugin Example
In this example we are going to see how we can use the antrun maven plugin in order to run ant…
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JUnit Code Coverage
1. Introduction For all test cases, it is important that coverage always analyses the whole code. This is a definitive…
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iText HTML to PDF Example
In the previous examples, we have studied about various Itext Classes like PDFTable, PDFStamper,PDFRectangle etc. that help us in creation…
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JMS Topic Example
When a publisher sends a message, there may be more than one customer interested in such messages. Publisher broadcasts the…
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JPA Many-to-Many association in SQL and NoSQL databases under Payara
1. Introduction In this article we will explore the JPA bidirectional @ManyToMany association in a SQL and NoSQL fashion. A…
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How to create Immutable class in java
1. Immutable class Immutable class is a class which the state of its instances does not change once it is constructed. Immutable objects…
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GWT CellTable Example
In this example we will learn how to use CellTable in GWT. The Google Web Toolkit is a development framework…
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Play! Framework tutorial for beginners
Play is a Web Framework for Scala and Java and it is a really powerful and complete one. It provides…
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