pascal.java

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     public class Pascal
     {
          private final static int NUM_ROWS = 5;

          public static void main(String[] args)
          {
               int[][] triangle = new int[NUM_ROWS][1];
               for(int i = 0; i < NUM_ROWS; i++)
               {
                    triangle[i] = new int[i+1];
                    
                    for(int j = 0; j < i+1; j++)
                    {
                         try
                         {
                              triangle[i][j] = triangle[i-1][j-1] + triangle[i-1][j];
                         }

                         // values for the 'sides' of the triangle is always 1
                         catch(ArrayIndexOutOfBoundsException e)
                         {
                              triangle[i][j] = 1;
                              continue;
                         }
                    }
               }

               for(int i = 0; i < triangle.length; i++)
               {
                    for(int j = 0; j < triangle[i].length; j++)
                    {
                         System.out.print(triangle[i][j]);
                    }
                    System.out.println();
               }
          }    // main
     }    // Pascal