Java GUI 三子棋小程序.doc

import java.awt.*;import java.awt.event.*;import javax.swing.*;import javax.swing.border.*;public class TicTacToe extends JApplet implements ActionListenerprivate char whoseTurn=X;JButton jbt=new JButton(New Game);private Cell cells=new Cell33;private JLabel jlblStatus=new JLabel(Xs turn to play);public TicTacToe()JPanel p=new JPanel(new GridLayout(3,3,0,0);for(int i=0;i3;i+)for(int j=0;j3;j+)p.add(cellsij=new Cell();p.setBorder(new LineBorder(Color.red,1);jlblStatus.setBorder(new LineBorder(Color.yellow,1);add(jbt,North);add(p,Center);add(jlblStatus,South);jbt.addActionListener(this);public void actionPerformed(ActionEvent e) if (e.getSource() = jbt) for (int i = 0; i 3; i+) for (int j = 0; j 3; j+) cellsij.setToken( ); cellsij.repaint(); jlblStatus.setText(Xs turn. Restart the game); whoseTurn = X; public boolean isFull()for(int i=0;i3;i+)for(int j=0;j3;j+)if(cellsij.getToken()= )return false;return true;public boolean isWon(char token)for(int i=0;i3;i+)if(cellsi0.getToken()=token)&(cellsi1.getToken()=token)&(cellsi2.getToken()=token)return true;for(int j=0;j3;j+)if(cells0j.getToken()=token)&(cells1j.getToken()=token)&(cells2j.getToken()=token)return true;if(cells00.getToken()=token)&(cells11.getToken()=token)&(cells22.getToken()=token)return true;if(cells02.getToken()=token)&(cells11.getToken()=token)&(cells20.getToken()=token)return true;return false;public class Cell extends JPanel implements MouseListenerprivate char token= ;public Cell()setBorder(new LineBorder(Color.black,1);addMouseListener(this);public char getToken()return token;public void setToken(char c)token =c;repaint();protected void paintComponent(Graphics g)super.paintComponent(g);if(token=X)g.drawLine(10,10,getWidth()-10,getHeight()-10);g.drawLine(getWidth()-10,10,10,getHeight()-10);else if(token=O)g.drawOval(10,10,getWidth()-20,getHeight()-20);public void mouseClicked(MouseEvent e)if(token= & whoseTurn!= )setToken(whoseTurn);if(isWon(whoseTurn)jlblStatus.setText(whoseTurn+ won!The game is over);whoseTurn= ;else if(isFull()jlblStatus.setText(Draw!The game is over);whoseTurn= ;elsewhoseTurn = (whoseTurn=X)?O:X;jlblStatus.setText(whoseTurn+ s turn);public void mousePressed(MouseEvent e