I am interested is there any way to intercept event of selecting something in JComboBox pop-up container. What i want to do if user clicks on some item in pop-up:
1. I want to add item to editor component (this is default behaviour)
2. After that i want to get that item from editor and call some method.
So user should only click on some item in popup for both actions.
Read the API for JComboBox and follow the link to the Swing tutorial on How to Use Combo Boxes. After you've gone through the tutorial, if you still have a question post a SSCCE that demonstrates your problem and we'll take a look.