Only the constants you define are the values of the enum.

diesieben07: So, by constants, you mean the “Bill” in

BILL("Bill")

?

No, i mean the

BILL

and

TOP_UP

.

"Bill"

is just a value of the

transactionType

field in the enum constant object. The name of your enum constants (used with

valueOf

) is

"BILL"

and

"TOP_UP"

in your case.

That is perfect, thank you @diesieben07 !

Or is you know the name of the enum value, there's also a "valueOf" method, so in your case

foo.valueOf("BILL")

would have worked too.