用JAVA写八个小游戏

好的，以下是八个小游戏的Java代码实现：

1. 猜数字游戏

import java.util.Random;
import java.util.Scanner;

public class GuessNumber {
    public static void main(String[] args) {
        Random random = new Random();
        int number = random.nextInt(100) + 1;
        int count = 0;
        Scanner scanner = new Scanner(System.in);
        while (true) {
            System.out.print("请输入一个1-100之间的整数：");
            int guess = scanner.nextInt();
            count++;
            if (guess == number) {
                System.out.println("恭喜你，猜中了！");
                System.out.println("你一共猜了" + count + "次。");
                break;
            } else if (guess > number) {
                System.out.println("猜大了，请继续！");
            } else {
                System.out.println("猜小了，请继续！");
            }
        }
    }
}

2. 翻转字符游戏

import java.util.Scanner;

public class ReverseString {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        System.out.print("请输入一个字符串：");
        String str = scanner.nextLine();
        String reverse = "";
        for (int i = str.length() - 1; i >= 0; i--) {
            reverse += str.charAt(i);
        }
        System.out.println("翻转后的字符串为：" + reverse);
    }
}

3. 猜单词游戏

import java.util.Random;
import java.util.Scanner;

public class GuessWord {
    public static void main(String[] args) {
        String[] words = {"apple", "banana", "orange", "grape", "watermelon"};
        Random random = new Random();
        String word = words[random.nextInt(words.length)];
        String hidden = "";
        for (int i = 0; i < word.length(); i++) {
            hidden += "*";
        }
        Scanner scanner = new Scanner(System.in);
        while (true) {
            System.out.print("请猜一个单词（" + hidden + "）：");
            String guess = scanner.nextLine();
            if (guess.equals(word)) {
                System.out.println("恭喜你，猜中了！");
                break;
            } else {
                System.out.println("猜错了，请继续！");
            }
        }
    }
}

4. 猜拳游戏

import java.util.Random;
import java.util.Scanner;

public class RockPaperScissors {
    public static void main(String[] args) {
        String[] choices = {"石头", "剪刀", "布"};
        Random random = new Random();
        int computer = random.nextInt(3);
        Scanner scanner = new Scanner(System.in);
        while (true) {
            System.out.print("请出拳（0-石头，1-剪刀，2-布）：");
            int player = scanner.nextInt();
            if (player < 0 || player > 2) {
                System.out.println("输入错误，请重新输入！");
                continue;
            }
            System.out.println("玩家出：" + choices[player]);
            System.out.println("电脑出：" + choices[computer]);
            if (player == computer) {
                System.out.println("平局，请继续！");
            } else if ((player == 0 && computer == 1) || (player == 1 && computer == 2) || (player == 2 && computer == 0)) {
                System.out.println("玩家胜利！");
                break;
            } else {
                System.out.println("电脑胜利！");
                break;
            }
        }
    }
}

5. 简单计算器

import java.util.Scanner;

public class Calculator {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        System.out.print("请输入第一个数：");
        double num1 = scanner.nextDouble();
        System.out.print("请输入运算符（+、-、*、/）：");
        String operator = scanner.next();
        System.out.print("请输入第二个数：");
        double num2 = scanner.nextDouble();
        double result = 0;
        switch (operator) {
            case "+":
                result = num1 + num2;
                break;
            case "-":
                result = num1 - num2;
                break;
            case "*":
                result = num1 * num2;
                break;
            case "/":
                if (num2 == 0) {
                    System.out.println("除数不能为0！");
                    return;
                }
                result = num1 / num2;
                break;
            default:
                System.out.println("运算符不正确！");
                return;
        }
        System.out.println("结果为：" + result);
    }
}

6. 打印九九乘法表

public class MultiplicationTable {
    public static void main(String[] args) {
        for (int i = 1; i <= 9; i++) {
            for (int j = 1; j <= i; j++) {
                System.out.print(j + "x" + i + "=" + (i * j) + "\t");
            }
            System.out.println();
        }
    }
}

7. 简单问答程序

import java.util.Scanner;

public class QnA {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        System.out.println("请回答以下问题：");
        System.out.println("1. 中国的首都是哪里？");
        String answer1 = scanner.nextLine();
        if (answer1.equals("北京")) {
            System.out.println("回答正确！");
        } else {
            System.out.println("回答错误！");
        }
        System.out.println("2. 世界上最高的山峰是哪座？");
        String answer2 = scanner.nextLine();
        if (answer2.equals("珠穆朗玛峰")) {
            System.out.println("回答正确！");
        } else {
            System.out.println("回答错误！");
        }
    }
}

8. 简单的猫叫声模拟器

public class CatSound {
    public static void main(String[] args) {
        System.out.println("猫叫声：喵~喵~");
    }
}

希望对你有所帮助！