text field validation

[karai baskar]

I want to validate text fields in a registration form which is created in swing.
suppose user leaves the field empty ,a alert message should be displayed and the cursor point should be in particular field
help me in doing this immediately .
thanks a lot
baskar

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[deekasha gunwant]

hi baskar,
you can add focusListener to your textfield and then check for the validity of data in lostFocus() event for the text field.
or for a more sophisticated validation visit this link. http://java.sun.com/docs/books/tutorial/uiswing/components/textfield.html#validation

regards
Deekasha