Jenny, Yes, a character can be a letter, number or any non-alphanumeric character include tabs, spaces, newlines, etc. It also comprises all Unicode characters as well. What is the requirement for validation? If it must be a printable character, then you can check for !Character.isISOControl( ch )
Regards, Richard > -----Original Message----- > From: jenny zhang [SMTP:[EMAIL PROTECTED]] > Sent: Monday, December 16, 2002 2:05 PM > To: Struts Users Mailing List > Subject: RE: validate > > Richard: > > Thank you for your reply. > I might misunderstand "character". "letter" is > "a-zA-Z", right? What is character? "space" or "tab" > is character. Right? Could you correct me if I am > wrong. Sorry for asking the simple question. > > Regards, > Jenny > > > --- "Yee, Richard K,,DMDCWEST" > <[EMAIL PROTECTED]> wrote: > Jenny, > > If your input can contain ANY characters then what > > do you need to validate > > for? Why don't you just check for an empty string? > > Am I missing something > > here? > > > > -Richard > > > > > > > -----Original Message----- > > > From: jenny zhang [SMTP:[EMAIL PROTECTED]] > > > Sent: Monday, December 16, 2002 1:47 PM > > > To: Struts Users Mailing List > > > Subject: validate > > > > > > Hi: > > > > > > This might not be the right place to post the > > message. > > > But if someone can help me here, I appreciate it. > > > > > > I have a text field that can be ANY characters. > > Which > > > method should I call to validate it? I don't think > > I > > > should call isLetterOrDigit(char ch), because > > "letter" > > > means "a-zA-Z". but character means more than > > letter, > > > for example, '#' is a character, but it is not > > letter. > > > Am I right? Which method should I call to validate > > the > > > field to be ANY characters? > > > I appreciate your help. > > > > > > Thanks. > > > > > > Jenny > > > > > > > > > ______________________________________________________________________ > > > > > Post your free ad now! http://personals.yahoo.ca > > > > > > -- > > > To unsubscribe, e-mail: > > > > > <mailto:[EMAIL PROTECTED]> > > > For additional commands, e-mail: > > > <mailto:[EMAIL PROTECTED]> > > > > -- > > To unsubscribe, e-mail: > > <mailto:[EMAIL PROTECTED]> > > For additional commands, e-mail: > > <mailto:[EMAIL PROTECTED]> > > > > ______________________________________________________________________ > Post your free ad now! http://personals.yahoo.ca > > -- > To unsubscribe, e-mail: > <mailto:[EMAIL PROTECTED]> > For additional commands, e-mail: > <mailto:[EMAIL PROTECTED]> -- To unsubscribe, e-mail: <mailto:[EMAIL PROTECTED]> For additional commands, e-mail: <mailto:[EMAIL PROTECTED]>
