How to make a switch for elements of type Enum

Question

There is a class of type Enum and I want to make a switch for it, but the constant expression required tells me.

Those. this way works

  if (item.getType() == ItemType.TEXT) { }

but this does not work

  switch (item.getType()){ case ItemType.TEXT: }

and so it also works

  switch (item.getType().toString()){ case String.valueOf(ItemType.TEXT): }

Here is the enum class itself

 public enum ItemType { TEXT,PHOTO,EMPTY; }

I won’t say about enum (I don’t understand why case ItemType.TEXT doesn't work), but the switch with String appeared relatively recently.
On the other hand, the call String.valueOf(ItemType.TEXT) cannot be called a constant expression .

Yuriy SPb ♦ YuriySPb 58.6k 7 48 99 · Accepted Answer · 2016-04-13T12:46:33

Do this:

 switch(item.getType()) { case TEXT: break; case PHOTO: break; case EMPTY: break; }

Before swith if necessary, check one more case separately: if (item.getType() == null) { ... }

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