Get return value of JOptionPane

Question

My JOptionPane code is as follows:

selectedSiteName = JOptionPane.showInputDialog("Enter the name of the new site:"); 

This displays input with a text box and an OK and Cancel button. I need to determine if Cancel was clicked.

Greetings.

Answer 1

Check if selectedSiteName == null.
This will happen if the user clicks Cancel or closes the dialog.

Answer 2

Read the JOptionPane API and follow the link to the Swing turorial on How to Use Dialogs for a working example.

Answer 3

 if(selectedSiteName == JOptionPane.CANCEL_OPTION) { } 

must work.