java龟兔赛跑小程序,有运行界面

好的，我可以为您提供一个简单的Java龟兔赛跑小程序，包含运行界面。以下是程序代码：

import javax.swing.*;
import java.awt.*;
import java.util.Random;

public class TurtleRabbitRace extends JFrame {

    private JPanel panel;
    private JLabel rabbitLabel;
    private JLabel turtleLabel;
    private JLabel finishLineLabel;

    public TurtleRabbitRace() {
        setTitle("龟兔赛跑");
        setSize(800, 600);
        setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        setLocationRelativeTo(null);

        panel = new JPanel();
        panel.setLayout(null);
        panel.setBackground(Color.WHITE);

        rabbitLabel = new JLabel(new ImageIcon("rabbit.png"));
        rabbitLabel.setSize(100, 100);
        rabbitLabel.setLocation(0, 50);
        panel.add(rabbitLabel);

        turtleLabel = new JLabel(new ImageIcon("turtle.png"));
        turtleLabel.setSize(100, 100);
        turtleLabel.setLocation(0, 200);
        panel.add(turtleLabel);

        finishLineLabel = new JLabel(new ImageIcon("finish_line.png"));
        finishLineLabel.setSize(50, 400);
        finishLineLabel.setLocation(700, 0);
        panel.add(finishLineLabel);

        add(panel);

        setVisible(true);
    }

    public void start() {
        Random random = new Random();
        int rabbitDistance = 0;
        int turtleDistance = 0;

        while (rabbitDistance < 700 && turtleDistance < 700) {
            int rabbitSpeed = random.nextInt(10) + 1;
            int turtleSpeed = random.nextInt(5) + 1;

            rabbitDistance += rabbitSpeed;
            rabbitLabel.setLocation(rabbitDistance, 50);

            turtleDistance += turtleSpeed;
            turtleLabel.setLocation(turtleDistance, 200);

            try {
                Thread.sleep(100);
            } catch (InterruptedException e) {
                e.printStackTrace();
            }
        }

        if (rabbitDistance >= 700 && turtleDistance >= 700) {
            JOptionPane.showMessageDialog(this, "平局！");
        } else if (rabbitDistance >= 700) {
            JOptionPane.showMessageDialog(this, "兔子获胜！");
        } else {
            JOptionPane.showMessageDialog(this, "乌龟获胜！");
        }
    }

    public static void main(String[] args) {
        TurtleRabbitRace race = new TurtleRabbitRace();
        race.start();
    }
}

您需要将程序中的图片文件（rabbit.png、turtle.png和finish_line.png）放在与程序同级的目录下。程序中的兔子和乌龟会随机移动，直到有一方到达终点（700像素处）为止。最终会弹出一个提示框，显示哪一方获胜或者是平局。

希望这个程序能够满足您的需求。