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validate JTextfield input

Sarone Thach
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Joined: Jun 25, 2003
Posts: 89
Does anyone know of an easy way of validating the JTextfield input. I would like to only permit numbers in the JTextfield, and deleting any character strings the user have entered. If possible, preventing the string to be displayed at all.
thanks in advanced for your help.
Sainath Veepuri
Ranch Hand

Joined: Sep 25, 2003
Posts: 49
hi sarone,
write a utility class which extends javax.swing.text.PlainDocument and override the insertString method and define it the way you want.Finally set the document for ur jtextfield.
I agree. Here's the link:
subject: validate JTextfield input
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