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guis and data

Test Drive

Now it’s time for another demo of your program. When you first fire up the
program, you see that there are initially no depots selected.

That’s good. Now what happens if you select the first option, then change to
the third?
If you select “Seattle,
WA”, you automatically
deselect “Cambridge,
MA”.

If you make a selection, the other radio buttons automatically deselect
themselves, which is exactly what you need.
Phew. Now the users will
always send the packages
The radio buttons are working correctly. to real depots. You did a

great job. Thanks!

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