Scratch

import java.util.*;
import java.util.Random; 
public class booleantest {
    public static void main(String[] args){
        int d = 0;
        while (d == 0){
        Random rand = new Random(); 
         int randomnumber = rand.nextInt(1000); 
    boolean fail = true;
        Scanner sum= new Scanner(System.in);
        System.out.println("Please enter the sum of these two numbers:");
        int b = randomnumber;
        Random rand1 = new Random(); 
         int randomnumber1 = rand1.nextInt(1000); 
        int c = randomnumber1;
        System.out.println(b + " and " + c);
        int a = sum.nextInt();
        if (a==(b+c)){
            System.out.println(fail);
        }
        else {
            System.out.println(!fail);
        }
        }
    }
}