Java program using static variable and method

In this tutorial, we are going to write a Java program using static variables and methods in Java Programming with practical program code and step-by-step full complete explanation.

Java program using static variable and method.

 
class A
{
    static
    {
        System.out.println("Initilizing a..");

    }
 
    public A()
    {
        System.out.println("Constructor is called");
    }
}

class B
{
    static int b;
    
    static
    {
        b=2;
        System.out.println("I am in class B");
    }
}

class C
{
    static
    {
        System.out.println("I am in class C");

    }

    public static void display()
    {
        System.out.println("Displayed method is called");
    }
}

class D
{
    static
    {
        System.out.println("I am in class D");
    }
 
    public static void main(String arr[])
    {
        System.out.println("main method");
        A z=new A();
        System.out.println("Class b is called"+B.b);
        C.display();
        System.out.println("hello!!");
        A q=new A();
    }
}

Output

 
I am in class D
main method
Initializing a..
Constructor is called
I am in class B
Class b is called2
I am in class c
Displayed method is called
hello!!
Constructor is called