package oops;

import java.util.Scanner;

public class AbstractDemo {

/**

* @param args

*/

public static void main(String[] args) {

// TODO Auto-generated method stub

Demo1 d = new Demo1();

d.disp();

d.get();

d.show();

}

}

abstract class Check

{

abstract void get();

abstract void show();

void disp()

{

System.out.println("Check Class");

}

}

class Demo1 extends Check

{

int a , b;

Scanner s = new Scanner(System.in);

void get() {

System.out.println("Enter the value of A and B = ");

a = s.nextInt();

b = s.nextInt();

}

void show()

{

if(a > b){

System.out.println("Subtraction is = "+(a-b));

}else {

System.out.println("Subtraction isnot possible");

}

}

}