Static Data in Java

In this tutorial, we will learn about the Static Data in Java, or its types, and how to use them with the help of examples.

Static data is the data declare using ‘static’ keyword. The static data creates a single copy for the class which will be share by all the objects of that class is know as Static Data in Java.

Syntax

static datatype var;

Syntax of Static data

Example of Static data

Input Value

public class staticm {
    int n;
    static int rec;
    public void input (int z)
    {
        n=z;
        rec++;
    }
    public void show()
    {
        System.out.println("Data:" +n);
    }
    public void showrec()
    {
        System.out.println("Data:" +rec); 
    }
    public static void main (String args[])
    {
        staticm a=new staticm();
        staticm b= new staticm();
        a.input(15);
        b.input(16);
        a.show();
        a.showrec();
        b.show();
        b.showrec();
    }
}

Example of Static data in Java

Let’s run the code

Output Value

Static Method in Java 

This method is the method declare using static keyword. Static method define within class occupy single copy of memory which object name (but object calling also allowed) static method only holds static data.

Syntax

public static return function(par,par,…)   {
} 

Syntax of Static Method in Java 

Example of Static Method in Java 

Input Value

public class staticm {
    int n;
    static int rec;
    public void input (int z)
    {
        n=z;
        rec++;
    }
    public void show()
    {
        System.out.println("Data:" +n);
    }
    public void showrec()
    {
        System.out.println("Data:" +rec); 
    }
    public static void main (String args[])
    {
        staticm a=new staticm();
        staticm b= new staticm();
        a.input(11);
        a.show();
        b.input(12);
        b.show();
        b.showrec();
    }
}

Example of Static Method in Java 

Let’s run the code

Output Value

Nesting Of Methods

Nesting of methods means one user defined function can call the other user defined function without creating object of the class.

Syntax of Nesting of methods

class Main
{
    method1(){ 

    } 
    
    method2()
    {
       
       method1();
    }
    method3()
    {
      
      method2();
    }
}

Syntax of Nesting of methods

Example of Nesting of methods

Input Value

public class staticm {
    
    public void show()
   
    {
        System.out.println("Basic Engineer");
    }
    public void disp()
    {
        show();
        System.out.println("Hello Student"); 
    }
    public static void main (String args[])
    {
        staticm p= new staticm();
        p.show();
        p.disp();
    }
}

Example of Nesting of methods

Let’s run the code

Output Value

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