There should be a way to simply identify a button as the default button in a form so that 
pressing the "Enter" key will activate the button.  Currently, there is only "setDefaultCapable"
which identifies the button as one of a group of possible default buttons, but does not 
generate the code to actually make this the default button.  Perhaps this option could 
be on the form (JPanel or JFrame) and would consist of a drop down list of all the JButtons 
on the form, so that a single one can be chosen as the default.  Alternatively, this could be
a True/False option on each JButton.  If JButton1 is chosen as the default, then the value of 
the option on JButton2 and JButton3 would be automatically set to False.

Similarly, there should be a way to specify that a particular button is the cancel button, and
would respond to the "Esc" key.