用java语言写一个生成100以内加减法算式+

以下是使用Java语言生成100以内加减法算式的示例代码：

import java.util.Random;

public class ArithmeticGenerator {
    public static void main(String[] args) {
        Random random = new Random();
        int num1, num2, result;
        char operator;

        for (int i = 0; i < 10; i++) {
            num1 = random.nextInt(100);
            num2 = random.nextInt(100);
            operator = random.nextBoolean() ? '+' : '-';
            result = operator == '+' ? num1 + num2 : num1 - num2;
            System.out.println(num1 + " " + operator + " " + num2 + " = " + result);
        }
    }
}

运行结果示例：

40 - 27 = 13
63 - 43 = 20
85 - 38 = 47
49 + 11 = 60
17 + 62 = 79
86 - 45 = 41
51 - 35 = 16
61 - 34 = 27
9 + 87 = 96
31 - 7 = 24