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Static Keyword in Java

static keyword is mainly used for memory management. We can be use with .

  • Variables
  • Methods
  • Blocks
  • Nested classes. e.t.c

1) Static Variable in Java

→ When a variable is declared as static, it is called static variable.

→ static variable refer to the common property of all objects.

→ static variable gets memory only once in the class area at the time of class loading.

Example 1:


Static Variable in Java

Example 2: Change the course.


Static Variable in Java

2) static method in Java

  • static method can access the static data member and can change the value of it.
  • When a method is declared with the static keyword, it is known as a static method.

Example : Change the course.


static method in Java

3) Static block in Java

  • Is used to initialize the static data member or static variables..
  • Static block is executed once when the first object of the class is created.
  • It is executed before the main method at the time of classloading.

Example :


static Block in Java