Pascal's Triangle Format

Question

The assignment is to create Pascal\'s Triangle without using arrays. I have the method that produces the values for the triangle below. The method accepts an integer for the

Answer 1

public static void main(String[] args)
{
    int a, num;

    for (int i = 0; i <= 4; i++) 
    {
        num = 1;
        a = i + 1;

        for(int j=4;j>0;j--)
        { 
            if(j>i)
                System.out.print(" ");
        }

        for (int j = 0; j <= i; j++) 
        {
            if (j > 0) 
                num = num * (a - j) / j;   

            System.out.print(num + " ");
        }
        System.out.println();
    } 
}

Code perfectly prints pascal triangle