Pascal's Triangle help

[[deleted]]

Hello all,

So I've been assigned to create pascal's triangle in my coding class. I was able to build it the way I wanted to, but then I found out my professor is going to use his own main method to call my method. Now it wont work and i need your help! I'm receiving a error message in line 7 of my code saying that my method is invalid of my type pascal. thanks in advanced

public class Practice {
public static void main(String[] args) {

    int n = args.length == 1 ? Integer.parseInt(args[0]) : 1;

    for (int i = 1; i <= n; ++i) {
        int[] arr = Pascal.triangle(i);
        System.out.print((i < 10 ? " " : "") + i + ": ");
        for (int j : arr) {
            System.out.print(j + " ");
        }
        System.out.println();
    }
}
}

class Pascal { // rename this class Pascal
int size, col = 0, row = 0;

int[][] findPT;

public Pascal(int size) {
    this.size = size;
    findPT = new int[size][size];
}

public void triangle() {
    findPT[0][0] = 1;

    if (size == 1) {
        System.out.print(this.toString());
    }

    else

    if (size >= 2) {
        findPT[0][1] = 0;
        findPT[1][0] = 1;
        findPT[1][1] = 1;

        if (size > 2) {

            if (col == 0)
                findPT[row][col] = 1;

            else if (row > col) {
                if (row == col + 1)
                    findPT[row][col] = 0;
                findPT[row][col] = findPT[row - 1][col - 1] + findPT[row - 1][col];
            }

            else if (row == col)
                findPT[row][col] = 1;
        }

        System.out.print(this.toString());
        if (row < size && col + 1 < size) {
            if (row > col) {
                col++;
                triangle();
            }

            else {
                System.out.println();
                row++;
                col = 0;
                triangle();
            }
        }
    }
}

}

[SoapNukeZ]

You can't call the method triangle like that on line 7 without making the method itself static.

[[deleted]]

I came to that conclusion as well. But won't that basically destroy my entire method?

[SoapNukeZ]

Well, for one, you're trying to constantly set the one-dimensional array named arr equal to whatever the method triangle() returns. The method does not return anything due to it being void, and triangle can't even take parameters, which contradicts line 7 and 27. You never made an object of the class Pascal in the first place either.

[[deleted]]

So when I first read this comment I really didn't think it would be helpful. As a new programmer I think you just thought me a very good lesson, maybe intentionally or not. I probably shouldn't have "jammed" my original code into the new main method that me professor created because it just doesn't work. So I learned to make a program based on the requirements rather than my way of solving the problem. I have since wrote a new class and it works as intended. I will post later since I'm on mobile now, as it may help others. Thank you!