java编写程序实现青蛙跳井游戏，并统计100次游戏和1000次游戏的时长及成功率。

在Java中编写青蛙跳井游戏并统计次数的时长和成功率，我们可以创建一个计时器来记录游戏次数和总时间，同时通过一个标志或变量来跟踪青蛙跳出井口的成功情况。以下是一个简化版的示例代码：

import java.util.concurrent.TimeUnit;

class FrogWell {
    private int wellDepth = 20;
    private int jumpSteps = 3;
    private int currentHeight = 0;
    private boolean success = false;
    private long startTime;
    
    public void startJump(int numTrials) {
        startTime = System.nanoTime(); // 记录开始时间
        for (int i = 0; i < numTrials; i++) {
            playGame();
            if (isSuccessful()) {
                success = true;
            }
        }
        long endTime = System.nanoTime();
        long elapsedTime = TimeUnit.NANOSECONDS.toMillis(endTime - startTime);
        
        // 统计数据
        double successRate = success ? (double) success / numTrials : 0;
        System.out.printf("100次游戏耗时: %.2f ms\n", elapsedTime / 100);
        System.out.printf("1000次游戏耗时: %.2f ms\n", elapsedTime / 1000);
        System.out.printf("100次游戏成功率: %.2f%%\n", successRate * 100);
    }

    private boolean isSuccessful() {
        return currentHeight >= wellDepth;
    }

    private void playGame() {
        while (currentHeight < wellDepth) {
            for (int j = 0; j < jumpSteps; j++) {
                currentHeight++;
            }
            // 模拟滑落...
        }
        System.out.println("青蛙成功跳出井口");
    }
}

public class Main {
    public static void main(String[] args) {
        FrogWell frog = new FrogWell();
        frog.startJump(100); // 100次游戏
        frog.startJump(1000); // 1000次游戏
    }
}