Enumeration in Java

Question

I'd like to know what is wrong with my code

public static enum e_option
{
        HELP,
        AUTHOR,
        PROJ_NAME,
        DESC,
        MAIN_CLASS_NAME,
        BASE_DIR,
        XML_NAME,
        RULE_OPT,
        UNKNOWN
}

the i have this method which is

public e_option s2i(String arg)
    {
        e_option opt = null;
        if (arg.equals("--help"))
        {
            opt = HELP;
        }
        if (arg.equals("--author"))
        {
            opt = AUTHOR;
        }

    }

the problem is eclipse doesn't recognize HELP and AUTHOR. It suggest me to create new constants which is bizzare.

Answer 1

要获取enum的值，您必须使用其名称：

opt = e_option.HELP;

Answer 2

为什么不尝试使用e_option.HELP而不是HELP？

Answer 3

您需要指定枚举名称：

opt = e_option.HELP;

Answer 4

除其他事项外，您承诺返回e_option是错误的，但是您没有这样做。