I have a question ..
I am working on some application in which I need to include multiple buttons under another buton ( collapse and expand) the upper button would be like a category that will give more options beneth this category a good example is inNetBeans when building a new GUI project
we can choose any GUI category and when clicking on it this will exapnded and gives me options to choos from .... with chaning the symbols for + to - and vice reverse. so would you please tell how to build something like that ...
and second question how to add this funtion to a table ...?? like a tree inside a table ... what component that are used for such kind of gui..
thanks a lot.
waiting for your answeres .
Description: first photo was taken form netbeen ...