如果不使用&&或运算符，我将如何编写此代码？

Question

public static double calculateMinPayment(double newBalance) {
double x;
if (newBalance < 0.00) {
return 0.00;
} else if (newBalance > 0.00 && newBalance <= 49.99) {
x = newBalance;
} else if (newBalance >= 50.00 && newBalance <= 300) {
x = 50.00;
} else {
x = newBalance * 0.2;
}
return x;     
}

我不能使用运算符&&或者，如果没有运算符，我如何格式化相同的代码？

Answer 1

可以使用嵌套的if语句，如下所示：

public static double calculateMinPayment(double newBalance) {
    double x;
    if (newBalance < 0.00) {
        return 0.00;
    } else if (newBalance > 0.00) {
        if (newBalance <= 49.99) {
            x = newBalance;
        } else if (newBalance >= 50.00) {
            if (newBalance <= 300) {
                x = 50.00;
            } else {
                x = newBalance * 0.2;
            }
        } else {
            x = newBalance * 0.2;
        }
    } else {
        x = newBalance * 0.2;
    }
    return x;
}