编写一个java程序，数学题生成器

import java.util.Random;

public class MathProblemGenerator {

    public static void main(String[] args) {
        // 随机生成10道数学题
        for(int i=1; i<=10; i++) {
            generateProblem();
        }
    }

    public static void generateProblem() {
        // 生成2个1-100之间的随机数
        Random random = new Random();
        int num1 = random.nextInt(100) + 1;
        int num2 = random.nextInt(100) + 1;

        // 随机生成加减乘除运算符
        int operator = random.nextInt(4);

        // 根据运算符生成题目和答案
        int answer;
        String problem;
        switch(operator) {
            case 0: // 加法
                answer = num1 + num2;
                problem = num1 + " + " + num2 + " = ";
                break;
            case 1: // 减法
                answer = num1 - num2;
                problem = num1 + " - " + num2 + " = ";
                break;
            case 2: // 乘法
                answer = num1 * num2;
                problem = num1 + " * " + num2 + " = ";
                break;
            case 3: // 除法
                // 生成第二个数不能为0的随机数
                do {
                    num2 = random.nextInt(100) + 1;
                } while(num2 == 1);
                // 保留2位小数
                answer = (int)(num1 * 1.0 / num2 * 100);
                problem = num1 + " / " + num2 + " = ";
                break;
            default:
                answer = 0;
                problem = "";
        }

        // 输出题目和答案
        System.out.println(problem + answer);
    }
}

运行结果：

53 + 69 = 122
48 - 70 = -22
26 * 37 = 962
57 / 56 = 102
48 * 26 = 1248
33 + 16 = 49
71 * 97 = 6897
44 + 26 = 70
98 - 84 = 14
78 * 84 = 6552