Question

Most of the times an enumeration containing all elements is shown in a drop down in the user interface. We have a need to show only 2 out of 5 fields in the user interface. What would be an easier way to fetch this data, by somehow leveraging the same functions available for an enumeration.

enum Color {RED, GREEN, BLACK, BLUE, YELLOW};

We have a requirement to show only {RED, BLUE} in a certain user interface?

Answer 1

Sounds like a job for EnumSet:

EnumSet<Color> set = EnumSet.of(Color.RED, Color.BLUE);