Does anyone know why I am NOT getting output, my output is supposed to be in thi

Question

Does anyone know why I am NOT getting output, my output is supposed to be in this format:

1,1
1,2
1,3
1,4,
1,5
2,1
2,2
2,3
2,3
2,4
2,5
3,1
3,2
3,3
3,4
3,5

Here is my code

public class testNum {

public static int Ack(int m, int n) {

if (m == 0) {
return 2 * n;
} else if (m >= 1) {
if (n == 0) {
return 0;
} else if (n == 1) {
return 2;
} else {
return Ack(m - 1, Ack(m, n - 1));
}
}
return n; // Not sure what to return here, Eclipse suggested this.
}

public static void main(String args[]) {
System.out.println(Ack(3, 4));
}
}

Explanation / Answer

please rate - thanks

I fixed your method

the function only returns 1 value, so it appears you need nexted loop to call it

Please message me before rating if any problem

public class testNum {

public static int Ack(int m, int n) {

if(m==0)
return (n+1);
else
   if(n==0)
      return (Ack(m-1,1));
   else
      return(Ack(m-1,Ack(m,n-1)));
}

public static void main(String args[]) {
for(int i=1;i<4;i++)
    for(int j=1;j<6;j++)
System.out.println(i+","+j+"="+Ack(i,j));
}
}

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