Question

I must implement a class to calculate n-th row of Pascal's Triangle (in Java).

I need to create a static method that takes an argument "n" and returns the n'th line of pascal's triangle.

the main method, which will call the class, is already done and the class is set up. Please build this without modifying the main method and without modifying exactly what the static method returns.

public class Main {

    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 {

    public static int[] triangle(int n) {

        return new int[]{0};
    }
}