Is there a way to set a maximum number of characters that can be entered into a JTextfield?
For example, if I initialized a textfield with


I only want the user to be able to enter a maximum of 5 characters.

This post was edited by tt_toby on May 17 2013 01:11pm

don't know if you can set it directly, but you could use a CarretListener and trim() the string if needed by intercepting carretUpdate events

ok... questions like these are mindnumbingly stupid.

seriously, don't be programming if you can't even look up javadocs yourself.

You can override the insertString() function of Document. And if the textField length == the limit, do nothing.

Sorry I can't post an example. I'm writing this post from my iphone. But here's a post that explains it, however you don't need to write a whole new class for it.
stackoverflow.com/questions/3519151/how-to-limit-the-number-of-characters-in-jtextfield