将斜杠添加到Java中的枚举 [英] Add slash to an enumeration in Java

问题描述

我需要创建一个枚举：

public enum STYLE {
ELEMENT1(0), A/R (2)
//Staff
};

但是 Java 不允许这样做。有什么解决方案吗？
感谢

But Java does not permit this. Is there any solution? Thanks

推荐答案

java中的枚举只是一个编译时语法糖。实际上枚举只是一个类，枚举成员就像 public final static 这个类的字段。每个字段的名称必须遵循某些规则。例如，名称不能包含特殊字符，这意味着该语言的特殊功能。例如 / 不能用作名称的一部分。

Enumeration in java is just a compile time syntactic sugar. Actually enum is just a class and enum member is just as public final static field of this class. Each field has name that must follow certain rules. For example name cannot contain special characters that mean something special in the language. For example / cannot be used as a part of name.

您可以将其称为如果你愿意，A_R

如果你还想从枚举成员 A / R > A_R 你可以定义返回它的方法，例如

If however you want additionally to be able to extract string A/R from enum member A_R you can define method that returns it, e.g.

public enum STYLE {
    ELEMENT1(0), 
    A_R (2) {
        @Override
        public String printableName() {
            return "A_R";
        } 
    };

    public String printableName() {
        return name();
    } 
}

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