java - How to add to a cumulative String:

Question

In one of my labs, I had to produce all the Pythagorean triples until a specific max. I found out how to get them but not how to add each of them to a specific string. How do I change the code so the output look like this?

3 4 5
5 12 13
7 24 25
8 15 17
9 40 41
11 60 61
12 35 37
13 84 85

Code:

private int greatestCommonFactor(int a, int b, int c)
{
    int max = number;

    for (a = 1; a <= max; a++) 
    {
        for (b = a; b <= max; b++) 
        {
            for (c = 1; c <= max; c++) 
            {
                if (a * a + b * b == c * c) 
                {
                    
                }
                else
                {
                    continue;
                }
            }
        }
    }
    
    return 1;
}


public String toString(){
    String output = ;
    return output+"
";
}

question from:https://stackoverflow.com/questions/65907351/how-to-add-to-a-cumulative-string

Answer 1

You should not pass a,b,c to the method, they are just local variables, but you may pass the max. Then you don't need to iterate for c, just compute it from a and b

private static void greatestCommonFactor(int max) {
    for (int a = 1; a <= max; a++) {
        for (int b = a; b <= max; b++) {
            double c = Math.sqrt(a * a + b * b);
            if (c == Math.floor(c)) { 
                System.out.println(a + " " + b + " " + (int) c);
            }
        }
    }
}

Call as greatestCommonFactor(50);

---

You can change the condition to if (c == Math.floor(c) && c < max) is you prefer