restricting text and forcing UPPERCASE in an applet

[celebmcgreg]

I have an applet where the users can enter anything into a text field. I would like to restrict user input to "Y" and "N" only. Also I would like them to be able to enter"y" and the text is converted into uppercase "Y". I'm using Sun One studio to develop in
Thanks for any help
Dan

[MasterOfSouls]

You can use the toUpperCase function of strings to convert everything to uppercase. Just take their text and use the fnction, Eg:

String upperCase = theirText.toUpperCase();

Hope this helps!

[Mojo]

if you are using JDK 1.4 you could try to see if JFormattedTextField will do what you wish.

Otherwise, perhaps implement a textListener to activate when the content of the text field changes and if the text entered is not y/Y or n/N you can set it back to empty string and as MasterOfSouls stated, you can use str.toUpperCase()