Java using switch statement with enum under subclass

Question

First I ll state that I m much more familiar with enums in C  and it seems like enums in java is a quite mess   As you can see  I m trying to use a switch statement   enums in my next example but I always get an error no matter what I m doing   The error I receive is      The qualified case label SomeClass AnotherClass MyEnum VALUE A must be replaced with the unqualified enum constant VALUE A   The thing is I quite understand the error but I can t just write the VALUE A since the enum is located in another sub-class  Is there a way to solve this problem  And why is it happening in Java     Main Class public class SomeClass          Sub-Class     public static class AnotherClass           public enum MyEnum               VALUE A  VALUE B                       public MyEnum myEnum             public void someMethod              MyEnum enumExample                switch  enumExample                case AnotherClass MyEnum VALUE A     lt -- error on this line                                      break

User · Answer

this should do     Main Class public class SomeClass          Sub-Class     public static class AnotherClass           public enum MyEnum               VALUE A  VALUE B                       public MyEnum myEnum             public void someMethod              AnotherClass MyEnum enumExample   AnotherClass MyEnum VALUE A                 switch  enumExample                case VALUE A       lt -- error on this line                              break

User · Answer

Change it to this   switch  enumExample        case VALUE A                         break            The clue is in the error  You don t need to qualify case labels with the enum type  just its value

User · Answer

Write someMethod   in this way   public void someMethod          SomeClass AnotherClass MyEnum enumExample   SomeClass AnotherClass MyEnum VALUE A       switch  enumExample        case VALUE A          break             In switch statement you must use the constant name only

User · Answer

This is how I am using it  And it is working fantastically -  public enum Button           REPORT ISSUES 0           CANCEL ORDER 1           RETURN ORDER 2            private int value           Button int value                this value   value                     public int getValue                 return value                    And the switch-case as shown below   Override public void onClick MyOrderDetailDelgate Button button  int position        switch  button            case REPORT ISSUES                break                    case CANCEL ORDER                break                    case RETURN ORDER                break

User · Answer

Java infers automatically the type of the elements in case  so the labels must be unqualified   int i  switch i       case 5      lt - integer is expected   MyEnum e  switch  e       case VALUE A      lt - an element of the enumeration is expected

User · Answer

Wrong     case AnotherClass MyEnum VALUE A   Right   case VALUE A

[java] Java: using switch statement with enum under subclass

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