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Hi guys,,
i'm new and still learning java, i was wondering i'm trying to limit a certain set of alphabets in a string field. For example, i'm having someone to input something, like a "this team vs that team" into a "team - team"
so when someone inputs it, i just want to limit only one "-" . So if he tries to put more than one - , the procedure doesnt work. But only limits to allow one " - " how do i do that?
What is the context? Is this a GUI? If so, would it be better to have two fields, one for team1 and one for team 2, so there's no need to have a dash (or so the dash is present in a label between the text fields)? If not a GUI, then again you could have them add each team on a separate line.
I agreed. Most of those kind of validation could be handle through the design sense using the UI. Can you explain a bit more details.
And also do you know about events like keypress, keyup, keydown and related in any language, not specifically with Java.
A KeyListener is most certainly *not* the way to go. How do you control input that is pasted in?Quote:
Originally Posted by Eranga
While Fubarable's suggestion of two fields with a label in between is what I would go with (and have gone with, in the past, just not in Java), the correct answer to the wrong approach postulated by the OP is to use a DocumentFilter.
db
Yeah that's true, pasted text cannot controlled in that way. But setEditable() will do that right, only allow the copy.