java实现计算机随机出题：随机出十道小学四则运算题目，要求操作数为10以内，运算加、减、乘、除，并可以根据用户的答案给出“√”或者“×”提示，最后计算总得分。

好的，以下是 Java 代码实现这个功能：

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

public class RandomArithmeticQuiz {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        Random random = new Random();
        int score = 0;
        for (int i = 0; i < 10; i++) {
            int a = random.nextInt(10) + 1;
            int b = random.nextInt(10) + 1;
            String operator = getRandomOperator();
            int answer = calculateAnswer(a, b, operator);
            System.out.print("第" + (i + 1) + "道题：" + a + " " + operator + " " + b + " = ");
            int userAnswer = scanner.nextInt();
            if (userAnswer == answer) {
                System.out.println("你的答案：" + userAnswer + "，结果：√");
                score += 10;
            } else {
                System.out.println("你的答案：" + userAnswer + "，结果：×");
            }
        }
        System.out.println("你的得分是：" + score + "分");
    }

    public static String getRandomOperator() {
        String[] operators = {"+", "-", "*", "/"};
        Random random = new Random();
        return operators[random.nextInt(4)];
    }

    public static int calculateAnswer(int a, int b, String operator) {
        switch (operator) {
            case "+":
                return a + b;
            case "-":
                return a - b;
            case "*":
                return a * b;
            case "/":
                return a / b;
            default:
                return 0;
        }
    }
}

运行代码后，程序会随机生成十道小学四则运算题目，您需要输入答案。程序会根据您的答案给出“√”或者“×”提示，并最终计算出总得分。注意，程序只能处理整数的四则运算，如果输入了小数，程序会出错。