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The moose likes Swing / AWT / SWT and the fly likes How to catch the Tab key code Big Moose Saloon
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How to catch the Tab key code

satya sahu
Ranch Hand

Joined: Mar 26, 2003
Posts: 97
Hi all,
I have to do some validation for few text fields. The validations are max,min range for integers and some string validations(no. of characters). All these validations should be done while tabbing out from a text field to another text filed. I am not able to get the Tab key code.
Is there any way i can catch the Tab out and do the validations. Say i enter something in the TextField1. If the input is not correct then show some message and the cursor should remain in the TextField1. If the input is correct then the control should go to the TextField2.
Please give me some sample code if available.
Thanks in advance.
Mudi Appu
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Joined: Apr 06, 2005
Posts: 44
focusLost(FocusEvent e) method of java.awt.event.FocusAdapter

Craig Wood
Ranch Hand

Joined: Jan 14, 2004
Posts: 1535
Check out InputVerifier. Class api has example code.
It is sorta covered in the JavaRanch Style Guide.
subject: How to catch the Tab key code
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