Java：JComboBox不接受enum.values（）

So I'm working on a practice program where I'm trying to use an Enum in a jcombobox. I believe this is a good decision for my program because the options in the combo box are constants, and they also have alternate values assigned to them (a string name in addition to the constant value), so I felt that enum was the best way to go.So I'm working on a practice program where I'm