I have posted the same question here in StackOverFlow:
A detailed version of this question
In short, I am following the Oracle Tutorial to create a table with a column of JComboBox. I create the editor and renderer of this column as I read in the
tutorial, more precisely, with these lines:
But, instead of seeing the imagen shown as follows:
which shows the first option at the first moment, I see my combobox in blank, like in the attachment.
I cannot figure out why. Selecting the first option is the default behavior, isn't it? Why I see a blank option coming from nowhere? I didn't set the
, so why?