import java.util.*;
   import javax.swing.*;
   import java.awt.*;
   import java.lang.Math;
/*
build a multiplication table
*/
    public class multTable  extends java.applet.Applet
   
   {
      private static int[][] mult = new int[11][11];
   
   
       public void init() 
      {
         setBackground(Color.BLACK);  	
      }
      
       public void paint(Graphics canvas)
      {	 
         multTable.buildTable(); //put numbers number in 2D array
         multTable.display(); //display numbers in 2D array
         displayApplet(canvas); // display numbers in graphics applet
      }
   	
   	
       public static void buildTable()
      {
         multTable.buildEdge();
         multTable.buildMiddle();
      }
   	/*
   	pre: mult is declared
   	post: row zero and column zero are initialized to 0 - length
   	*/
       public static void buildEdge()
      {
      
      }
   	/*
   	pre: mult declared and row 0 and column 0 are initialized
   	post: build multiplication table
   	*/
       public static void buildMiddle()
      {
      
      }
   	
       public static void displayApplet(Graphics canvas)
      {
         canvas.setColor(Color.BLUE);
         int width = (int)Math.ceil(400 / mult.length);
         
         multTable.drawLines(canvas, width);
         multTable.drawNumbers(canvas, width);
      }
   	
       public static void drawLines(Graphics canvas, int w)
      {
         for(int i =0; i < (400-w); i+= w)
         {
            canvas.drawLine(0, i, 400, i);
            canvas.drawLine(i, 0, i, 400);
         }
      }
      
       public static void drawNumbers(Graphics canvas, int w)
      {
         int w2 = w / 3; // where to display number
         for(int i = 0; i < mult.length; i++)
            for(int j = 0; j < mult[i].length; j++)
            {
               multTable.setNumberColor(canvas, i, j);
               canvas.drawString(Integer.toString(mult[i][j]), w*i + w2, w*j + (w/2));
            }
      }
   	
       public static void setNumberColor(Graphics canvas, int i, int j)
      {
         int r = 255;
         int g = 255;
         int b = 255;
         Color c = new Color(r-20*i, g-20*j, b-i*j);
         canvas.setColor(c);
      }
   	
   	/*
   	display mult rray
   	*/
       public static void display()
      {
      
      }
   }