Static Members

Static Members

The static members can be static data member or static method. The static members are those members which can be accessed without using object. Following program illustrates the use of static members.

• static members

1.     static member

2.     static method

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Java Program [Static Prog.java]

/*************************************************************

Program to introduce the use of the static method and static variables

************************************************************/

class StaticProg

{

static int a = 10;

static void fun(int b)

{

System.out.println("b= "+b);

System.out.println("a = "+a);

}

}

class AnotherClass

{

public static void main(String[] args)

{

System.out.println("a= "+Static Prog.a);

StaticProg.fun(20);

}

}

Output

a= 10

b= 20

a= 10

Program Explanation

In above program, we have declared one static variable a and a static member function fun(). These static members are declared in one class StaticProg. Then we have written one more class in which the main method is defined. This class is named as AnotherClass. From this class the static members of class StaticProg are accessed without using any object. Note that we have simple used a syntax

ClassName.staticMember

Hence by using StaticProg.a and StaticProg.fun we can access static members

Points to remember about static members

•In Java the main is always static method.

•The static methods must can access only static data.

• The static method can call only the static method and can not call a non static method.

• The static method can not refer to this pointer.

• The static method can not refer to super method.