Sign Finder Desiderata
v The radio buttons and the text box of the GUI are the
means of presenting input
v The computation takes place when the OK is clicked
v Since clicking a radio button, entering the text box
and clicking the OK command button are “events”,
the program can be developed by considering what
computation is needed in response to each event
; Month Radio Button -- set up the data for that month
; Day Value Entry -- save the data for later
; OK Command Button -- Determine the sign and print it
v How is the sign determined from the month and day?