Java Callback mechanism

[messi121]

I am developing a user interface. Basically the user will have a scroll list from which they select gender and from there i have another frame which gives the user a further option. For example in this i want first the user to select their gender and then once selected another frame to provide a list in which they can select their size. I need it to run asynchronously.

When the user selects a gender from the list, the genderSelector (class name) is going to have to supply the corresponding object. Also i need to make sure the user can only select one item from the list hence i need to use SINGLE_SELECTION.

I need to use something like callback but my java knowledge is limited would appreciate some help.

Can someone help provide me with a simple example of this method and i could expand on it?

 

[Diancecht]

What kind of interface are you thinking on, Swing, AWT?
Why do you want to have all those frames?
What do you mean with "run asynchronously"?

Cheers,
Dian

 

[messi121]

I am using Swing i was maybe thinking of using the split pan when i say asynchronously i want it to run in correspondence so once the gender is selected the sizes are displayed immanently.

 

[Diancecht]

I'm not sure I fully understood your question. Do you mean something like this?

Cheers,
Dian