pascaltriangle.java

this a pascal triangle i made for my computer science class~ and it is very simple

class PascalTriangle
{
	public static long factorial(int n)  
	{
		long product=1;
		if (n > 0)
		{
			for (int i = n; i >= 1;i--)
				product *= i;
		}
		else
			product = 1;
		return product;
	}
		
	public static long nCr (int n, int r)
	{ 
		long product = factorial(n)/(factorial(r)*factorial(n-r));
		return product;

	}
	

	public static void Triangle (int numberOFrows)
	{
      
		int enteredRows = numberOFrows - 1;
		long num = 0;
		long num2 = 1;
		int y=1;
		int space = 1 * 3 - 3;
		for (int i=0;i<=y;i++)
		{
		for (int c = 1; c <= space; c++)
				Output.print (" ");
			space -= 3;


			for (int j = 0; j <= i; j++)
			{
				num = nCr(i, j);
				
					if (j == 0)
						Output.print (num);
					else if (num < 10 && num >= 0)
						Output.print ("     " + num);
					else if (num >= 10 && num < 100)
						Output.print ("    " + num);
					else if (num >= 100 && num < 1000)
						Output.print ("   " + num);
					else if (num >= 1000 && num < 10000)
						Output.print ("  " + num);
					else if (num >= 10000 && num < 100000)
						Output.print (" " + num);
					else if (num >= 100000 && num < 1000000)
						Output.print ("" + num);

			}
			Output.println();
		}
	}
	public static void main (String[] args)
	{
	  
	int row = 0;
		do
		{
			row = Input.getInt ("Please Enter the number of rows for the pascal triangle (0 to stop)");
			if (row <= 0 || row > 20)
				;
			else
				Triangle(row);
		}
		while (row != 0);
	}
}