Subject: Parse integer out of string 2005-07-07 - By Duc Vo
Back
You should do your homework, mate. Should not ask question like that ...
Read documentation on Pattern and pattern grouping should help.
-- --Original Message-- --
From: A mailing list for Java(tm) 2 Platform, Enterprise Edition
[mailto:J2EE-INTEREST@(protected)] On Behalf Of Taco
Sent: Friday, 8 July 2005 11:51 AM
To: J2EE-INTEREST@(protected)
Subject: Re: Parse integer out of string
I realize that. My point is it doesn't work..
See example that I included, and you will see it should have worked but
did
not, hence the error.
-- --Original Message-- --
From: A mailing list for Java(tm) 2 Platform, Enterprise Edition
[mailto:J2EE-INTEREST@(protected)] On Behalf Of Frans Verhoef
Sent: Friday, 8 July 2005 11:51 AM
To: J2EE-INTEREST@(protected)
Subject: Re: Parse integer out of string
Just make sure that you define yourInt outside the if statement.
To be more precise:
int yourInt;
if(m.find()){
int yourInt Integer.parseInt(yourString.substring(m.start(),m.end()));
}else{
// take your action in case no integer found in yourString
}
On Fri, 8 Jul 2005 11:21:22 +1000, Taco wrote:
> Thanks that's sort of what I put together as well.
>
> Using your example:
>
> String yourString = "A string that contains number 30 that needs to
> be parsed out";
> Pattern p = Pattern.compile("\\d+"); Matcher m > p.matcher(yourString); if(m
.find()) { int yourInt > Integer.parseInt(yourString.substring(m.start(), m.end(
))); }
> System.out.println("result: " + yourInt);
>
> I got:
>
> java.lang.Error: Unresolved compilation problem:
> yourInt cannot be resolved
>
> at SSLTransportLayer08.getResponse(SSLTransportLayer08.java:149) at
> SSLTransportLayer08.main(SSLTransportLayer08.java:74)
>
> Which means it never found anything.. ???
> I'm puzzled..
>
> -- --Original Message-- --
> From: A mailing list for Java(tm) 2 Platform, Enterprise Edition
> [mailto:J2EE-INTEREST@(protected)] On Behalf Of Frans Verhoef
> Sent: Friday, 8 July 2005 11:18 AM To: J2EE-INTEREST@(protected)
> Subject: Re: Parse integer out of string
>
> Actually not J2EE, but here we go:
>
> String yourString = "A string that contains number 30 that needs to
> be parsed out"; Pattern p = Pattern.compile("\\d+"); Matcher m > p.matcher
(yourString); if(m.find()){
> int yourInt = Integer.parseInt(yourString.substring(m.start(),
> m.end())); }
>
> Cheers
> Frans
>
> =====================================================================> =====
To unsubscribe, send email to listserv@(protected) and
> include in the body of the message "signoff J2EE-INTEREST". For
> general help, send email to listserv@(protected) and include in
> the body of the message "help".
=========================================================================To
unsubscribe, send email to listserv@(protected) and include in the
body
of the message "signoff J2EE-INTEREST". For general help, send email to
listserv@(protected) and include in the body of the message "help".
=========================================================================To
unsubscribe, send email to listserv@(protected) and include in the
body
of the message "signoff J2EE-INTEREST". For general help, send email to
listserv@(protected) and include in the body of the message "help".
==========================================================================To
unsubscribe, send email to listserv@(protected) and include in the body
of the message "signoff J2EE-INTEREST". For general help, send email to
listserv@(protected) and include in the body of the message "help".
|
|
