Java – Static keyword

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  • Generally, a member declared in a class can only be accessed through the object of that class. But, declaring a member as static means that it can be accessed without creating object and it belongs to the class and not to the instance.
  • The keyword ‘static’ can be applied to variable, method, block and nested class.

Static Variable (class variable):

  • Static variable is initialized only once.
  • A single copy is created and shared by all the instances of the class.  It can be accessed without using object.
  • A static variable can be accessed outside of the class using the following



Static Method:

A static method belongs to the class rather than the instances of the class. There are some restrictions over static methods. They are,

  • A static method can directly call only static methods
  • It can directly access only static fields
  • It cannot use ‘this’ and ‘super’

Static method can be invoked  using the following syntax


Static Block:

            Static blocks are executed when the class gets loaded even before any other method in the class. Initializations of variables and other startup procedures can be defined in a static block since it is first block executed when a class gets loaded.


static {






a=5         b=10

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