Java Program - Snakes and Ladders

I have written simple program for Snakes and Ladders in java using java swing. And same i have converted into javascript as well. You can play Snakes and Ladders here. Java source code is given below, you can copy and play in your machine.

Start playing Snakes and Ladders

●●

Computer

Java Code

package javaexperts;

import java.awt.Color;

import javax.swing.ImageIcon;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JButton;
import javax.swing.JOptionPane;
import javax.swing.UIManager;

import java.awt.event.ActionListener;
import java.awt.event.ActionEvent;
import java.util.HashMap;
import java.util.Random;

public class SnakeAndLadder extends JFrame implements ActionListener{

JLabel lblComp = new JLabel("Computer");
JButton btnYou = new JButton("Play");
JButton newGame = new JButton("New Game");

JLabel lblCompNo = new JLabel("");
JLabel lblYouNo = new JLabel("");

JLabel lblCompPos = new JLabel("");
JLabel lblYouPos = new JLabel("");

HashMap<Integer,Integer> ladder = new HashMap<Integer,Integer>();
HashMap<Integer,Integer> snake = new HashMap<Integer,Integer>();

int youCount = 1;
int compCount = 1;

int w=15,h=15;
int x=0,y=0;

StringBuffer compList = null;
StringBuffer youList = new StringBuffer();

Random dies = new Random();

public SnakeAndLadder()  throws Throwable{
super("SnakeAndLadder");
setLayout(null);
// setLayout(new BorderLayout());
setVisible(true);
setResizable(false);
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
//getContentPane().setBackground(Color.LIGHT_GRAY);
setBounds(10, 10, 700, 580);
JLabel background=new JLabel(new ImageIcon("E:\\blog\\pgms\\snakesandladders\\a.png"));
background.setBounds(0, -10, 550, 570);
add(background);

btnYou.setBounds(560, 200, 60, 30);
add(btnYou);

lblComp.setBounds(560, 250, 60, 30);
add(lblComp);

lblYouNo.setBounds(640, 200, 60, 30);
lblYouNo.setOpaque(true);
lblYouNo.setBackground(Color.BLUE);
lblYouNo.setForeground(Color.GREEN);
add(lblYouNo);

lblCompNo.setBounds(640, 250, 60, 30);
lblCompNo.setOpaque(true);
lblCompNo.setBackground(Color.RED);
lblCompNo.setForeground(Color.GREEN);
add(lblCompNo);

newGame.setBounds(580, 140, 90, 30);
add(newGame);
coinPosition(1,compCount);
lblCompPos.setBounds(x, y, w, h);
lblCompPos.setOpaque(true);
lblCompPos.setBackground(Color.RED);
background.add(lblCompPos);

coinPosition(2,youCount);
lblYouPos.setBounds(x, y, w, h);
lblYouPos.setOpaque(true);
lblYouPos.setBackground(Color.BLUE);
background.add(lblYouPos);

repaint();

ladder.put(3, 51);
ladder.put(6, 27);
ladder.put(20, 70);
ladder.put(36, 55);
ladder.put(63, 95);
ladder.put(68, 98);

snake.put(25, 5);
snake.put(34, 1);
snake.put(47, 19);
snake.put(65, 52);
snake.put(87, 57);
snake.put(91, 61);
snake.put(99, 69);

newGame.addActionListener(this);
btnYou.addActionListener(this);


}
  public static void main(String args[])  throws Throwable {
UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
new SnakeAndLadder();
  }
  public void actionPerformed(ActionEvent e) {
 if (e.getSource() == newGame) {
 youCount = 1;
 compCount = 1;
 coinPosition(1,compCount);
 lblCompPos.setBounds(x, y, w, h);
 coinPosition(2,youCount);
 lblYouPos.setBounds(x, y, w, h);
 lblYouNo.setText("");
 lblCompNo.setText("");
 btnYou.setVisible(true);
 repaint();
 } else if (e.getSource() == btnYou) {
 compList = new StringBuffer();

 int playAgain = playDies(2);
 coinPosition(2,youCount);
 lblYouPos.setBounds(x, y, w, h);
 repaint();
 if(ladder.containsKey(youCount)) {
 youCount = ladder.get(youCount);
 } else if (snake.containsKey(youCount)){
 youCount = snake.get(youCount);
 }
 coinPosition(2,youCount);
 lblYouPos.setBounds(x, y, w, h);
 repaint();
 if(youCount == 100) {
 btnYou.setVisible(false);
 JOptionPane.showMessageDialog(this, "You win");
 } else if(playAgain == 0) {
 youList = new StringBuffer();
 do {
 playAgain = playDies(1);
 coinPosition(1,compCount);
 lblCompPos.setBounds(x, y, w, h);
 repaint();
 if(ladder.containsKey(compCount)) {
 compCount = ladder.get(compCount);
 } else if (snake.containsKey(compCount)){
 compCount = snake.get(compCount);
 }
 coinPosition(1,compCount);
 lblCompPos.setBounds(x, y, w, h);
 repaint();
 if(compCount == 100) {
 btnYou.setVisible(false);
 JOptionPane.showMessageDialog(this, "Computer win");
 break;
 }

 } while(playAgain == 1);
 }

 }
  }
 
  private int playDies(int player) {
 int playAgain = 0;
 int diesResult = 0;
 while(diesResult == 0) {
 diesResult = dies.nextInt(7);
 }
 if(player == 2){
 youList.append(String.valueOf(diesResult));
 youList.append(",");
 lblYouNo.setText(youList.toString());
 if(youCount+diesResult <= 100) {
 youCount = youCount+diesResult;
 if(diesResult == 1 || diesResult == 5 || diesResult == 6) {
 playAgain = 1;
 }
 }
 } else {
 compList.append(String.valueOf(diesResult));
 compList.append(",");
 lblCompNo.setText(compList.toString());
 if(compCount+diesResult <= 100) {
 compCount = compCount+diesResult;
 if(diesResult == 1 || diesResult == 5 || diesResult == 6) {
 playAgain = 1;
 }
 }
 }
 return playAgain;
  }
 
  private void coinPosition(int compOrYou, int count) {

 int xpos = count%10;
 int ypos = count/10;
 if(xpos == 0) {
 xpos = 10;
 ypos = ypos-1;
 }
 if(compOrYou == 1) {
 x = 5 + (xpos*55) - 55;
 } else {
 x = 25 + (xpos*55) - 55;
 }
 y = 540 - (ypos*57);
  }
}