java编写多运算符计算器

在 Java 中编写一个多运算符计算器，可以创建一个实现了基本运算（如加、减、乘、除）以及更复杂运算（如取余、幂等）的 Calculator 类。这个类通常会包含一些方法，比如：

public class Calculator {
    public double add(double a, double b) {
        return a + b;
    }

    public double subtract(double a, double b) {
        return a - b;
    }

    public double multiply(double a, double b) {
        return a * b;
    }

    public double divide(double a, double b) throws ArithmeticException {
        if (b != 0) {
            return a / b;
        } else {
            throw new ArithmeticException("Division by zero is not allowed");
        }
    }

    public double modulo(double a, double b) throws ArithmeticException {
        if (b != 0) {
            return a % b;
        } else {
            throw new ArithmeticException("Modulo operation requires a non-zero divisor");
        }
    }

    public double power(double base, double exponent) {
        return Math.pow(base, exponent);
    }
}

用户可以通过创建 Calculator 对象并调用相应的计算方法来执行操作，例如：

Calculator calc = new Calculator();
double result = calc.add(5, 3); // 结果为8
result = calc.subtract(10, 7); // 结果为3

try {
    result = calc.divide(10, 2); // 结果为5
} catch (ArithmeticException e) {
    System.out.println(e.getMessage());
}