Java enum : Refactoring switch statements 'constant expression required' compile error?

Question

I have a class declaring constants for my app

public class GroupConstants {
    ..
    public static final int INTEGER_VALUE = 1;
    public static final int         


        

Answer 1

Java has native support of enums in switch statements. In your case you should say:

DataType type = ...;

switch (type) {
    case UNKNOWN_VALUE
        //do something
        break;
    case INTEGER_VALUE
        //do something
        break;
    case LONG_VALUE
        //do something
        break;
    case STRING_VALUE
        //do something
        break;
    case BOOLEAN_VALUE
        //do something
        break;