I want to make a TextBox class which only accepts integers.
How can i do it?
Thanx all.
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I want to make a TextBox class which only accepts integers.
How can i do it?
Thanx all.
I’ll assume that you mean Java Swing and desktop.
Use a JTextField class; you need not create a new class. You may “wanna”, but I’m arguing that there’s no need to do it. The behavior you need doesn’t reside in the JTextField class. Extending an existing class should mean different behavior. You can get what you want by adding the appropriate Listener.
Creating a new class may turn out to be harmful. At best, it increases your maintenance burden; at worst, you’ll get it wrong.
Write a Listener to ensure that only integers are allowed.
http://download.oracle.com/javase/tutorial/uiswing/components/textfield.html