Write a Java Program to demonstrate the use of subclass.

Write a Java Program to demonstrate the use of subclass.

Program Code:

import java.lang.*;

class parent

{

int m;

void get_m(int m)

{

this.m=m;

}

void display_m()

{

System.out.println("This is from parent : m = " +m);

}

}

class child extends parent

{

int n;

void get_n(int n)

{

this.n=n;

}

void display_n()

{

System.out.println("This is from child : n = " +n);

}

}

class childdemo

{

public static void main(String arg[])

{

child c=new child();

c.get_m(10);

c.get_n(20);

c.display_m();

c.display_n();

}

}

Output:

This is from parent : m = 10

This is from child : n = 20