Almost every Java developer come across the word 'JSON' during project development. In fact, not only the Java developer, but also other language developers, even UI developers. Almost everyone in the software industry directly or indirectly, sooner or later get a chance to work with JSON. Now you can imagine how important it is to know in & out of it. You may have a question in your mind 'What is Java JSON' and 'How to work with JSON in Java?'. Although its syntax is very easy to write, but sometimes it creates confusion when an object is a bit complex. You must require knowledge of it when you test your application by sending or receiving JSON data. Moreover, it also