How to decompile class file in Java and Eclipse - Javap command example

The ability to decompile a Java class file is quite helpful for any Java developer who wants to look into the source of any open source or propriety library used in a project. Though I always prefer to attach sources in Eclipse of most common libraries like JDK it’s not always possible with an increasing number of dependencies. Java decompiler (a program that can decompile Java class files to produce source files) is very helpful in such a situation. By using Java decompiler you can easily check out the source of any .class file. Thanks to Eclipse IDE and the increasing number of free plug-ins available for Java developers, You can have powerful Java decompile in your armory.
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Why use Underscore in Numbers from Java? Underscore in Numeric Literals Example

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