Multiplication Table

package com.demo;

import java.awt.BorderLayout;

import java.awt.Graphics;

import javax.swing.JFrame;

import javax.swing.JLabel;

import javax.swing.JPanel;

public class Demo extends JFrame {

public Demo() {

this.setLayout(new BorderLayout());

JPanel titlePanel = new JPanel();

JLabel titleLable = new JLabel("Multiplication Table");

titlePanel.add(titleLable);

MultiplicationPanel tabel = new MultiplicationPanel();

this.add(titlePanel,BorderLayout.NORTH);

this.add(tabel, BorderLayout.CENTER);

}

public static void main(String[] args) {

Demo frame = new Demo();

frame.setSize(400, 400);

frame.setLocationRelativeTo(null);

frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

frame.setVisible(true);

}

}

class MultiplicationPanel extends JPanel{

protected void paintComponent(Graphics g){

super.paintComponent(g);

for (int i = 0; i < 9; i++) {

for (int j = 0; j < 9; j++) {

g.drawString((i+1)*(j+1)+"", (i+2) * this.getWidth()/11, (j+2) * this.getHeight()/11);

}

}

for (int i = 0; i < 9; i++) {

g.drawString((i+1)+"", (i+2) * this.getWidth()/11,(1) * this.getHeight()/11);

}

g.drawLine(2 * this.getWidth()/11 -10, this.getHeight()/11+this.getHeight()/22 -5,

this.getWidth()-10, this.getHeight()/11+this.getHeight()/22 -5);

for (int j = 0; j < 9; j++) {

g.drawString((j+1)+"", 1 * this.getWidth()/11, (j+2) * this.getHeight()/11);

}

g.drawLine(2 * this.getWidth()/11 -10, this.getHeight()/11+this.getHeight()/22 -5,

2 * this.getWidth()/11 -10, this.getHeight()-15);

g.drawLine(2 * this.getWidth()/11 -10, this.getHeight()-15,this.getWidth()-10, this.getHeight()-15 );

g.drawLine(this.getWidth()-10, this.getHeight()/11+this.getHeight()/22 -5,

this.getWidth()-10, this.getHeight()-15);

}

}