Need help with my diffydriver class!!!

Question

I nee help! here is my code: http://pastebin.com/f3616165
An example: if you enter these four numbers: 10, 7, 2, 2 to the prompts in main, your program should print
10 7 2 2
3 5 0 8
2 5 8 5
3 3 3 3
0 0 0 0
my problem is my printDiffy method

Answer 1

Sorry for the trouble, I try to go to the irc ##java chat, and had it pasted to the paste-bin web site:
import java.util.Scanner;
public class diffydriver {
* @param args the command line arguments
public static void main(String[] args) {
Scanner console = new Scanner(System.in);
int n1,n2,n3,n4;
System.out.println("Enter four integer" +
"initial values. Separate each one by a space: ");
n1 = console.nextInt();
n2 = console.nextInt();
n3 = console.nextInt();
n4 = console.nextInt();
Diffy d = new Diffy (n1, n2, n3, n4);
d.printDiffy();
System.out.println();
do {
d.next();
d.printDiffy();
while (d.isZero() == false);
class Diffy {
private int d1;
private int d2;
private int d3;
private int d4;
private Object d;
public Diffy(int diffy1, int diffy2, int diffy3, int diffy4)
d1 = diffy1;
d2 = diffy2;
d3 = diffy3;
d4 = diffy4;
public boolean isZero()
if (!(d1 + d2 + d3 + d4 == 0))
return false;
else
return true;
public Diffy next()
int a,b,c,e;
a = Math.abs(this.d1 - this.d2);
b = Math.abs(this.d2 - this.d3);
c = Math.abs(this.d3 - this.d4);
e = Math.abs(this.d4 - this.d1);
Diffy w = new Diffy(a,b,c,e);
return w;
void printDiffy() {
//d = null;
d = d.next();
}