Final keyword in java

It can be used to define final class, final method, final fields and final variable. It can be used in many context in java. Final keyword perform a important role in java programming.

Abstraction in Java

Abstraction shows only important things to the user and hides the internal details for example sending WhatSapp message, you just type the text and ping the message. You don't know the internal processing about the message delivery.

Java  J2EE 

Java I/O

Java I/O (Input and Output) is used to process the input and produce the output based on the input.

Java  File  J2EE 


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