Welcome to OGeek Q&A Community for programmer and developer-Open, Learning and Share
Welcome To Ask or Share your Answers For Others

Categories

0 votes
443 views
in Technique[技术] by (71.8m points)

java - How to use enum in switch case

I am trying to check what values are set in my VO.

Below are my clasess. I am getting "The qualified case label MyEnum.UserType.DOCTORS must be replaced with the unqualified enum constant DOCTORS"

Please help me to identify what I am doing wrong here.

MyEnum.java

public MyEnum{
    private UserType userType;

    public UserType getUserType(){
        return userType;
    }

    public void setUserType(UserType userType){
        this.userType = userType;
    }

    public static enum UserType{
        DOCTORS("D"),
        PATIENT("P"),
        STAFF("S");
    }

}

EnumTest.java

public EnumTest {

    .....
    public void onGoBack(MyEnum myEnum) {

        switch(myEnum.getUserType())
        {
            case UserType.DOCTORS: // this shows "The qualified case label MyEnum.UserType.DOCTORS must be replaced with the unqualified enum constant DOCTORS"
                break;

        }
    }

}
See Question&Answers more detail:os

与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…
Welcome To Ask or Share your Answers For Others

1 Reply

0 votes
by (71.8m points)

Since the compiler knows what type of enum you're evaluating in the switch statement, you should drop the "qualified" portion as the error suggests (in your case: MyEnum.UserType.) and simply use the "unqualified" enum DOCTORS. See below:

switch(myEnum.getUserType())
{
    case DOCTORS: 
        break;
}

与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…
OGeek|极客中国-欢迎来到极客的世界,一个免费开放的程序员编程交流平台!开放,进步,分享!让技术改变生活,让极客改变未来! Welcome to OGeek Q&A Community for programmer and developer-Open, Learning and Share
Click Here to Ask a Question

...