Static Keyword -Java

What is a static keyword?

The static keyword is basically a non-access modifier

We can use it with class-level variable

We can use methods

We can make a static block

We can use static with inner class too

Why do we create static variables?

static variables' main use is for memory management when a variable is declared as static then a single copy of the variable is created and shared among all the objects at the class level.

 We create static variables when we want to make our program memory efficient

And when we have some variable common for all the objects, then we make that object static

Static Methods

Static methods belong to class not object

Static methods can be called directly by class name

Static Block

 What is a static block?

The static block gets executed automatically when a class is loaded in the memory

 We need a main method to execute a static block in java1.8

But in java version 1.6 and older we can execute static block without main method