Pascal triangle in java

Program: Write a program to enter number of rows and create a Pascal Triangle.
Input: 5
Output:

     1               row=1

    1 1              row=2

   1 2 1             row=3

  1 3 3 1            row=4

 1 4 6 4 1           row=5

Source File: PascalTriangle.java

package triangle;

public class PascalTriangle

{

      public static void main(String args[])

      {

            int rows, i, k, number=1, j;

            rows = 5;  //change number of rows as per need

            for(i=0;i<rows;i++)

            {

                  for(k=rows; k>i; k--)

                  {

                        System.out.print(" ");

                  }

                  number = 1;

                  for(j=0;j<=i;j++)

                  {

                        System.out.print(number+ " ");

                        number = number * (i - j) / (j + 1);

                  }

                  System.out.println();

            }

      }

}

OUTPUT:

     1

    1 1

   1 2 1

  1 3 3 1

 1 4 6 4 1

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