java贪吃蛇代码eclipse

以下是使用Eclipse编写的Java贪吃蛇代码：

import java.awt.*;
import java.awt.event.*;
import javax.swing.*;

public class Snake extends JFrame implements ActionListener {
    private static final long serialVersionUID = 6678292058307426314L;
    private JLabel label;
    private JButton startButton, exitButton;
    private Timer timer;
    private JPanel panel;
    private int x[] = new int[400], y[] = new int[400];
    private int len = 3, foodx, foody, width = 10, height = 10, direction = 1;
    private boolean dead = false, pause = false;

    public Snake() {
        super("贪吃蛇");
        setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        setSize(400, 400);
        setLocationRelativeTo(null);
        setResizable(false);
        panel = new JPanel();
        panel.setLayout(null);
        label = new JLabel("分数: 0");
        label.setBounds(5, 5, 100, 20);
        panel.add(label);
        startButton = new JButton("开始");
        startButton.setBounds(120, 5, 80, 20);
        startButton.addActionListener(this);
        panel.add(startButton);
        exitButton = new JButton("退出");
        exitButton.setBounds(220, 5, 80, 20);
        exitButton.addActionListener(this);
        panel.add(exitButton);
        add(panel);
        setVisible(true);
        Graphics g = panel.getGraphics();
        g.setColor(Color.WHITE);
        g.fillRect(0, 0, 400, 400);
    }

    public void actionPerformed(ActionEvent e) {
        if (e.getSource() == startButton) {
            startButton.setEnabled(false);
            timer = new Timer(100, this);
            timer.start();
            init();
            draw();
            addfood();
            return;
        }
        if (e.getSource() == exitButton) {
            System.exit(0);
        }
        if (e.getSource() == timer) {
            if (!dead) {
                move();
                draw();
            } else {
                timer.stop();
                int result = JOptionPane.showConfirmDialog(this, "游戏结束！是否重新开始？", "游戏结束", JOptionPane.YES_NO_OPTION);
                if (result == JOptionPane.YES_OPTION) {
                    init();
                    draw();
                    addfood();
                    timer.start();
                    dead = false;
                } else {
                    System.exit(0);
                }
            }
        }
    }

    public void init() {
        for (int i = 0; i < len; i++) {
            x[i] = (len - i - 1) * width + 50;
            y[i] = 50;
        }
        len = 3;
        direction = 1;
        dead = false;
        pause = false;
        label.setText("分数: 0");
    }

    public void draw() {
        Graphics g = panel.getGraphics();
        g.setColor(Color.WHITE);
        g.fillRect(0, 0, 400, 400);
        g.setColor(Color.RED);
        g.fillRect(foodx, foody, width, height);
        for (int i = 0; i < len; i++) {
            g.setColor(Color.GREEN);
            g.fillRect(x[i], y[i], width, height);
        }
    }

    public void addfood() {
        int fx = (int) (Math.random() * 38) * 10 + 10;
        int fy = (int) (Math.random() * 38) * 10 + 10;
        foodx = fx;
        foody = fy;
    }

    public void move() {
        for (int i = len; i > 0; i--) {
            x[i] = x[i - 1];
            y[i] = y[i - 1];
        }
        if (direction == 0) {
            y[0] -= height;
        }
        if (direction == 1) {
            x[0] += width;
        }
        if (direction == 2) {
            y[0] += height;
        }
        if (direction == 3) {
            x[0] -= width;
        }
        if (x[0] == foodx && y[0] == foody) {
            len++;
            label.setText("分数: " + (len - 3) * 10);
            addfood();
        }
        if (x[0] < 0 || x[0] > 390 || y[0] < 0 || y[0] > 390) {
            dead = true;
        }
        for (int i = 1; i < len; i++) {
            if (x[0] == x[i] && y[0] == y[i]) {
                dead = true;
            }
        }
    }

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

运行该程序，在窗口中点击开始按钮即可开始游戏。使用方向键控制蛇的移动方向，吃到食物后蛇的长度会增加，游戏结束后可以选择重新开始或退出游戏。