[Eku]

here is some hints

1. Add a ActionListener
2. Get the return value of the JFilechooser (it can be OK or the Cancel button)
Sample in getting the return value:

Code:

int RT = fileChooser.showOpenDialog(this);

3. Compare the return value to your desired value
Another Sample:

Code:

 if (RT == JFileChooser.APPROVE_OPTION){
//do your thing here for Yes or Ok button
} else if (RT == JFileChooser.CANCEL_OPTION){
//here is for Cancel or No button
}