将ExamQuestion @ 143c8b3作为打印输出在控制台中 [英] Getting ExamQuestion@143c8b3 as print out in console

问题描述

我有一个类有一个方法，它接受一个字符串。然后我有一个方法返回上述方法的值。当我得到我的主类中的返回值并打印它的打印值是ExamQuestion @ 143c8b3。如何让它正确打印？

I have a have a class that has a method which takes a string. Then I have a method which returns the value of the above method. When ever I get the return value in my main class and print it the printed value is "ExamQuestion@143c8b3". How do I get it to print correctly?

感谢

推荐答案

是对象的toString（）方法的默认格式。

Whenever you get the format "@" this is the default format of an object's toString() method.

调用 System.out.println（question）; 调用 ExamQuestion.toString 。如果方法没有被覆盖，超级类中的版本将被调用，在这种情况下它将是 Object 的版本。

Calling System.out.println(question); calls ExamQuestion.toString(). If the method isn't overridden, the version in the super class will be called, in this case it will be Object's version.

这就是为什么你得到ExamQuestion @ 143c8b3。

So that's why you get ExamQuestion@143c8b3.

要解决此问题，请在您的ExamQuestion类中添加以下方法：

To fix this, put the following method in your ExamQuestion class:

public String toString() {
    // return a string that means something here
}

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