Question

否则，如果发生错误-Java'（'预期-参加在线课程。为在线测验编写了一些代码，并且系统接受了该代码。第二个测验问题非常相似。代码将无法运行并且不会肯定是错的。语法结构似乎与第一个问题的答案相似。我缺少什么？Java爱好者新手...

package com.JonEKreski;

public class Main {

    public static void main(String[] args) {

        shouldWakeUp(false, -1);
        System.out.println("Dog is barking = " + barking);
    }
    public static boolean shouldWakeUp(boolean barking, int hourOfDay) {
        if ((hourOfDay < 0) || (hourOfDay > 23)) {
            barking = false;
        } else if {
            ((hourOfDay < 8) || (hourOfDay > 22));
            barking = true;
        } else {
            barking = false;
        }
        return barking;
    }
}

Answer 1

更正，否则应该

else if ((hourOfDay < 8) || (hourOfDay > 22)){
    barking = true;
}

Answer 2

您需要更改此内容

} else if {
    ((hourOfDay < 8) || (hourOfDay > 22));
    barking = true;
} else {
 ...

与此：

} else if ((hourOfDay < 8) || (hourOfDay > 22)) {
    barking = true;
} else {
 ...

Answer 3

问题出在第9行。正确的代码：

    public static void main(String[] args) {

        shouldWakeUp(false, -1);
        System.out.println("Dog is barking = " + barking);
    }

    public static boolean shouldWakeUp(boolean barking, int hourOfDay) {
        if ((hourOfDay < 0) || (hourOfDay > 23)) {
            barking = false;
        } else if ((hourOfDay < 8) || (hourOfDay > 22)) {
            barking = true;
        } else {
            barking = false;
        }
        return barking;
    }

如果其他错误要求括弧-看不到错误

3 个答案: