Subtraction program for Blue J

Subtraction 

import java.util.*;

class subtract

{

public static void main(String args[])

{

Scanner sc = new Scanner(System.in);

int a,b,c;

System.out.println("Enter a number");

a=sc.nextInt();

System.out.println("Enter another number");

b=sc.nextInt();

c=a-b;

System.out.println("Difference of "+a+" and " +b+ " is " +c);

}

}