easy string question 1

[sparc20]

does anyone remembers how to check if a string is characters only and not alphanumeric? im using j2se 1.4.2

thanx

 

[stefanwagner]

What's about ws-characters like blank, tab, linefeed?
What about interpunctation, like dot, comma, semicolon?
What about internationalisation: äüÖ´e`e^e¢?

If you mean only A-Z and a-z, you may use patternmatching:

if (Pattern.matches ("[A-Za-z]+", str))
// or
if (Pattern.matches ("\p{Alpha}", str))

see: java.util.regex
Class Pattern

 

[sparc20]

thanx...it works just fine

 

[stefanwagner]

So - since it would not be fine to ask for an asterix, i don't ask for one.
Don't the users recognize asterixes as formularized 'thank you'? Don't they read the FAQs and nettiquettes?

 

[sparc20]

its really a small asterix and someone could miss it easily