import java.awt.Color;import java.awt.Graphics;import java.awt.Toolkit;import java.awt.event.ActionEvent;import java.awt.event.ActionListener;import java.awt.event.InputEvent;import java.awt.event.KeyEvent;import java.awt.event.KeyListener;import javax.swing.JCheckBoxMenuItem;import javax.swing.JFrame;import javax.swing.JMenu;import javax.swing.JMenuBar;import javax.swing.JMenuItem;import javax.swing.JOptionPane;import javax.swing.KeyStroke;public class 贪吃蛇extends JFrame implements ActionListener, KeyListener,Runnable { /****/private static final long serialVersionUID = 1L;private JMenuBar menuBar;private JMenu youXiMenu,nanDuMenu,fenShuMenu,guanYuMenu;private JMenuItem kaiShiYouXi,exitItem,zuoZheItem,fenShuItem;private JCheckBoxMenuItem cJianDan,cPuTong,cKunNan;private int length = 6;private Toolkit toolkit;private int i,x,y,z,objectX,objectY,object=0,growth=0,time;//bojectX,Yprivate int m[]=new int[50];private int n[]=new int[50];private Thread she = null;private int life=0;private int foods = 0;private int fenshu=0;public void run(){time=500;for(i=0;i<=length-1;i++){m[i]=90-i*10;n[i]=60;}x=m[0];y=n[0];z=4;while(she!=null){check();try{Thread.sleep(time);}catch(Exception ee){System.out.println(z+"");}}}public 贪吃蛇() {setVisible(true);menuBar = new JMenuBar();toolkit=getToolkit();youXiMenu = new JMenu("游戏"); kaiShiYouXi = new JMenuItem("开始游戏"); exitItem = new JMenuItem("退出游戏");nanDuMenu = new JMenu("困难程度"); cJianDan = new JCheckBoxMenuItem("简单"); cPuTong = new JCheckBoxMenuItem("普通"); cKunNan = new JCheckBoxMenuItem("困难");fenShuMenu = new JMenu("积分排行"); fenShuItem = new JMenuItem("最高记录");guanYuMenu = new JMenu("关于");zuoZheItem = new JMenuItem("关于作者");guanYuMenu.add(zuoZheItem);nanDuMenu.add(cJianDan);nanDuMenu.add(cPuTong);nanDuMenu.add(cKunNan);fenShuMenu.add(fenShuItem);youXiMenu.add(kaiShiYouXi);youXiMenu.add(exitItem);menuBar.add(youXiMenu);menuBar.add(nanDuMenu);menuBar.add(fenShuMenu);menuBar.add(guanYuMenu);zuoZheItem.addActionListener(this);kaiShiYouXi.addActionListener(this);exitItem.addActionListener(this);addKeyListener(this);fenShuItem.addActionListener(this);KeyStroke keyOpen = KeyStroke.getKeyStroke('O',InputEvent.CTRL_DOWN_MASK); kaiShiYouXi.setAccelerator(keyOpen);KeyStroke keyExit = KeyStroke.getKeyStroke('X',InputEvent.CTRL_DOWN_MASK); exitItem.setAccelerator(keyExit);setJMenuBar(menuBar);setTitle("贪吃蛇");setResizable(false);setBounds(300,200,400,400);validate();setDefaultCloseOperation(EXIT_ON_CLOSE);}public static void main(String args[]) {new 贪吃蛇();}public void actionPerformed(ActionEvent e){if(e.getSource()==kaiShiYouXi){length = 6;foods = 0;if(she==null){she=new Thread(this);she.start();}else if(she!=null){she=null;she= new Thread(this);she.start();}}if(e.getSource()==exitItem){System.exit(0);}if(e.getSource()==zuoZheItem){JOptionPane.showMessageDialog(this, "孤独的野狼制作"+"\n\n"+" "+"QQ号:2442701497"+"\n");}if(e.getSource()==fenShuItem){JOptionPane.showMessageDialog(this,"最高记录为"+fenshu+"");}}public void check(){isDead();if(she!=null){if(growth==0){reform(); //得到食物}else{upgrowth(); //生成食物}if(x==objectX&&y==objectY){growth=1;toolkit.beep();}if(object==0){object=1;objectX=(int)Math.floor(Math.random()*39)*10;objectY=(int)Math.floor(Math.random()*29)*10+50;}this.repaint(); //重绘}}void isDead(){//判断游戏是否结束的方法if(z==4){x=x+10;}else if(z==3){x=x-10;}else if(z==2){y=y+10;}else if(z==1){y=y-10;}if(x<0||x>390||y<50||y>390){she=null;}for(i=1;i<length;i++){if(m[i]==x&&n[i]==y){she=null;}}}public void upgrowth() {//当蛇吃到东西时的方法if(length<50){length++;}growth--;time=time-10;reform();life+=100;if(fenshu<life){fenshu = life;}foods++;}public void reform(){for(i=length-1;i>0;i--) {m[i]=m[i-1];n[i]=n[i-1];}if(z==4){m[0]=m[0]+10;}if(z==3){m[0]=m[0]-10;}if(z==2){n[0]=n[0]+10;}if(z==1){n[0]=n[0]-10;}}{if(she!=null){if(e.getKeyCode()==KeyEvent.VK_UP){if(z!=2){z=1;check();}}else if(e.getKeyCode()==KeyEvent.VK_DOWN) {if(z!=1){z=2;check();}}else if(e.getKeyCode()==KeyEvent.VK_LEFT){if(z!=4){z=3;check();}}else if(e.getKeyCode()==KeyEvent.VK_RIGHT) {if(z!=3){z=4;check();}}}}public void keyReleased(KeyEvent e){}{}public void paint(Graphics g) {g.setColor(Color.DARK_GRAY); //设置背景g.fillRect(0,50,400,400);g.setColor(Color.pink);for(i=0;i<=length-1;i++){g.fillRect(m[i],n[i],10,10);}g.setColor(Color.green); //蛇的食物g.fillRect(objectX,objectY,10,10);g.setColor(Color.white);g.drawString("当前分数"+this.life,6,60);g.drawString("当前已吃食物数"+this.foods,6,72); }}。