Question

// Create a class called Dog containing two String: name and says. In main(), create two dogs objects
and assign it to spot's object.  

class Dog {
    String name;
    String says;
}

public class DogSays {
    public static void main(String[] args) {
        Dog D1 = new Dog();
        Dog D2 = new Dog();

        D1.says = "Woof!";
        D1.name = "Scruffy!";

        D2.says = "Bark!";
        D2.name = "Spot!";
        System.out.println("Hi! My name is " + D1.name);
        System.out.println(D1.says);
        System.out.println("Rooooooooowr! I'm " + D2.name);
        System.out.println(D2.says);
    }
}

我已经检查了一个小时，我不知道出了什么问题。我得到了一个类，枚举或接口错误，也有一个未闭合的字符文字。我认为它与引号有关。

Answer 1

问题“Unclosed character literal”在这里：

//Exercise2.5 Create a class called Dog containing two String: name and says. In main(), create two dogs objects
and assign it to spot's object.

成功：

//Exercise2.5 Create a class called Dog containing two String: name and says. In main(), create two dogs objects
//and assign it to spot's object.

如果没有前导//或未/*和*/对中，您就不会有杂散评论......

Answer 2

唯一想到的是：

//Exercise2.5 Create a class called Dog containing two String: name and says. In main(), create two dogs objects
and assign it to spot's object.

如果这正是您在课堂上编写的，那么，您的评论的第二行会出现错误：and assign it to spot's object.。在Java中，//表示一行注释，因此您必须执行以下操作：

//Exercise2.5 Create a class called Dog containing two String: name and says. In main(), create two dogs objects
//and assign it to spot's object.

或者

/*Exercise2.5 Create a class called Dog containing two String: name and says. In main(), create two dogs objects
and assign it to spot's object.  */

与//相反，//指示编译器跟随/* */并且在同一行上的任何其他文本由于它们是注释而被忽略，{{1}}个字符表示注释可以跨越任意行的块。

未公开的字符文字

2 个答案: