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Application runs and closes automatically

 
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I have this code which is a JFrame with a JPanel and three buttons.

When I run the program it just closes AUTOMATICALLY. Why is that?



Thanks.
 
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What you think is a constructor isn't. It's a method that has the same name as a constructor would. Instead you are calling the default constructor that is generated automatically. Remove the "void" and see what happens.
 
Abder-Rahman Ali
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Thanks Rob, you are absolutely right.
 
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