Demonstration of Puzzle game...

This Puzzle game consists of  eight digits 1 to 8 and nine buttons and you have to arrange these digits according to increasing order. You have to just click on those button which you want to arrange. You can even change the level of the game

Here is the Source code of the program....................

game.java

///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////

import java.awt.*;
import javax.swing.*;
import java.awt.event.*;
class puzzle extends JFrame implements ActionListener
{
JButton b1,b2,b3,b4,b5,b6,b7,b8,b9,next;
puzzle()
{
super("puzzle");
b1=new JButton("1");
b2=new JButton(" ");
b3=new JButton("3");
b4=new JButton("4");
b5=new JButton("5");
b6=new JButton("6");
b7=new JButton("7");
b8=new JButton("8");
b9=new JButton("2");
next=new JButton("next");
b1.setBounds(10,30,50,40);
b2.setBounds(70,30,50,40);
b3.setBounds(130,30,50,40);
b4.setBounds(10,80,50,40);
b5.setBounds(70,80,50,40);
b6.setBounds(130,80,50,40);
b7.setBounds(10,130,50,40);
b8.setBounds(70,130,50,40);
b9.setBounds(130,130,50,40);
next.setBounds(70,200,100,40);
add(b1);add(b2);add(b3);add(b4);add(b5);add(b6);add(b7);add(b8);add(b9);add(next);
b1.addActionListener(this);
b2.addActionListener(this);
b3.addActionListener(this);
b4.addActionListener(this);
b5.addActionListener(this);
b6.addActionListener(this);
b7.addActionListener(this);
b8.addActionListener(this);
b9.addActionListener(this);
next.addActionListener(this);
next.setBackground(Color.black);
next.setForeground(Color.green);
setSize(250,300);
setLayout(null);
setVisible(true);
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
}
public void actionPerformed(ActionEvent e)
{
if(e.getSource()==next)
{
String s=b4.getLabel();
b4.setLabel(b9.getLabel());
b9.setLabel(s);
s=b1.getLabel();
b1.setLabel(b5.getLabel());
b5.setLabel(s);
s=b2.getLabel();
b2.setLabel(b7.getLabel());
b7.setLabel(s);
}
if (e.getSource()==b1)
{
String s=b1.getLabel();
if (b2.getLabel().equals(" "))
{
b2.setLabel(s);
b1.setLabel(" ");
}
else if (b4.getLabel().equals(" "))
{
b4.setLabel(s);
b1.setLabel(" ");
}
}
if (e.getSource()==b3)
{
String s=b3.getLabel();
if (b2.getLabel().equals(" "))
{
b2.setLabel(s);
b3.setLabel(" ");
}
else if (b6.getLabel().equals(" "))
{
b6.setLabel(s);
b3.setLabel(" ");
}
}
if (e.getSource()==b2)
{
String s=b2.getLabel();
if (b1.getLabel().equals(" "))
{
b1.setLabel(s);
b2.setLabel(" ");
}
else if (b3.getLabel().equals(" "))
{
b3.setLabel(s);
b2.setLabel(" ");
}
else if (b5.getLabel().equals(" "))
{
b5.setLabel(s);
b2.setLabel(" ");
}
}
if (e.getSource()==b4)
{
String s=b4.getLabel();
if (b1.getLabel().equals(" "))
{
b1.setLabel(s);
b4.setLabel(" ");
}
else if (b7.getLabel().equals(" "))
{
b7.setLabel(s);
b4.setLabel(" ");
}
else if (b5.getLabel().equals(" "))
{
b5.setLabel(s);
b4.setLabel(" ");
}
}
if (e.getSource()==b5)
{
String s=b5.getLabel();
if (b2.getLabel().equals(" "))
{
b2.setLabel(s);
b5.setLabel(" ");
}
else if (b4.getLabel().equals(" "))
{
b4.setLabel(s);
b5.setLabel(" ");
}
else if (b6.getLabel().equals(" "))
{
b6.setLabel(s);
b5.setLabel(" ");
}
else if (b8.getLabel().equals(" "))
{
b8.setLabel(s);
b5.setLabel(" ");
}
}
if (e.getSource()==b6)
{
String s=b6.getLabel();
if (b9.getLabel().equals(" "))
{
b9.setLabel(s);
b6.setLabel(" ");
}
else if (b3.getLabel().equals(" "))
{
b3.setLabel(s);
b6.setLabel(" ");
}
else if (b5.getLabel().equals(" "))
{
b5.setLabel(s);
b6.setLabel(" ");
}
}
if (e.getSource()==b7)
{
String s=b7.getLabel();
if (b4.getLabel().equals(" "))
{
b4.setLabel(s);
b7.setLabel(" ");
}
else if (b8.getLabel().equals(" "))
{
b8.setLabel(s);
b7.setLabel(" ");
}
}
if (e.getSource()==b8)
{
String s=b8.getLabel();
if (b7.getLabel().equals(" "))
{
b7.setLabel(s);
b8.setLabel(" ");
}
else if (b9.getLabel().equals(" "))
{
b9.setLabel(s);
b8.setLabel(" ");
}
else if (b5.getLabel().equals(" "))
{
b5.setLabel(s);
b8.setLabel(" ");
}
}
if (e.getSource()==b9)
{
String s=b9.getLabel();
if (b6.getLabel().equals(" "))
{
b6.setLabel(s);
b9.setLabel(" ");
}
else if (b8.getLabel().equals(" "))
{
b8.setLabel(s);
b9.setLabel(" ");
}
if (b1.getLabel().equals("1")&&b2.getLabel().equals("2")&&b3.getLabel().equals("3")&&b4.getLabel().equals("4")&&b5.getLabel().equals("5")&&b6.getLabel().equals("6")&&b7.getLabel().equals("7")&&b8.getLabel().equals("8")&&b9.getLabel().equals(" "))
{
JOptionPane.showMessageDialog(puzzle.this,"!!!you won!!!");
}
}
}

public static void main(String[] args)
{
new puzzle();
}
}

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Now Compile and run your program and enjoy you first java Game........BEST OF LUCK.