// Solution to Project 9.8

import java.util.Scanner;

public class PascalTriangle{

   public static void main (String[] args){
      Scanner reader = new Scanner(System.in);
      String query = "y";
      while (query.equalsIgnoreCase("y")){
         System.out.print("Enter the number rows: ");
         int rows = reader.nextInt();
         if (rows <= 10){
            int triangle[][] = makePascalTriangle(rows);
            displayList(triangle);
         }
         else
            System.out.println("Number of rows cannot exceed " + 10);
         reader.nextLine();
         System.out.print("Run again[y/n]? ");
         query = reader.nextLine();
      }
   }

   private static void displayList(int a[][]){
      int maxCols = a[0].length;
      String value;
      for (int row = 0; row < a.length; row++)
         for (int col = 0; col < maxCols; col++){
            if (a[row][col] == 0)
               value = " ";
            else
               value = "" + a[row][col];
            System.out.print(String.format("%3s", value) + " ");
            if (col == maxCols - 1)
               System.out.println("");
         }
   }
   // Complete this section:  
   private static int [][] makePascalTriangle(int rows){
                                              // Compute width of array
                                              // Create array object
                                              // Set all cells to 0
          
          
                                              // Set 1 in first row
     
     
                                              // Set remaining values
            
            
            
            
            
            
   }
}