Re: TextField error checking
From: hiwa (HGA03630_at_nifty.ne.jp)
Date: 12/22/03
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Date: 21 Dec 2003 17:00:20 -0800
negative_ions_0@hotmail.com (- ions) wrote in message news:<4799447d.0312210507.73cb102@posting.google.com>...
> I have created a JComboBox with its Items as a list of "M" numbers ie.
> M1,M2,M3.......throgh too M110 (thes are the messier objects, a
> catolouge of deep sky objects) the user selects of of these and views
> it aswell as infomation. The program also has a JTextFiels which
> allows the user to enter the M number. The problem i have is checking
> that what the user has entered is valid, that being an M followed by 1
> - 110 Nothing else, i thought of checking it against the items in the
> comboBox with itemAt() but i cudnt work out a way of looping through
> them, and using that within the if() Expression.... please help.
You can use InputVerifier extended class, or, more simply, you can do
the check in the ActionListener for the JTextField.
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