Groups > comp.lang.java.programmer > #18668

Re: can't return value

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From	Jukka Lahtinen <jtfjdehf@hotmail.com.invalid>
Newsgroups	comp.lang.java.programmer
Subject	Re: can't return value
Date	Wed, 12 Sep 2012 15:32:51 +0300
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"bilsch" <king621@comcast.net> writes:

> I thought passing variables was a way to get around the visibility problem - 
> but I'm stuck anyway.  Does anyone have a suggestion?  TIA  Bill S.
>
> public class Name01{
>
>     public static String lastName(String wholeName){
>      for (int i = 0; i <= wholeName.length(); i++){
>          if (wholeName.charAt(i)== ' '){
>             String lastName = wholeName.substring(i,wholeName.length()-1);
>             //System.out.println(lastName);
>             return lastName;
>          }
>      }
>      //return lastName;
>     }

What Eric wrote in his followup, and you could also define lastName
before the for loop and initialize it to null.

   public static String lastName(String wholeName) {
     String lastName = null;
     for (int i = 0; i < wholeName.length(); i++) {
...

Also notice that you probably should change the <= operator to < in the
for loop condition to avoid StringIndexOutOfBoundsException if there's
no space in the parameter String.
And like Eric wrote, there are handier ways to split a String, but
that's not where your current problem is.

-- 
Jukka Lahtinen

Thread

can't return value "bilsch" <king621@comcast.net> - 2012-09-12 00:36 -0700
  Re: can't return value Eric Sosman <esosman@ieee-dot-org.invalid> - 2012-09-12 07:11 -0400
    Re: can't return value bilsch <bilsch01@gmail.com> - 2012-09-12 22:15 -0700
      Re: can't return value Eric Sosman <esosman@ieee-dot-org.invalid> - 2012-09-13 08:53 -0400
  Re: can't return value Jukka Lahtinen <jtfjdehf@hotmail.com.invalid> - 2012-09-12 15:32 +0300
    Re: can't return value bilsch <bilsch01@gmail.com> - 2012-09-12 22:37 -0700
      Re: can't return value Lew <lewbloch@gmail.com> - 2012-09-12 23:17 -0700
        Re: can't return value markspace <-@.> - 2012-09-13 01:11 -0700
          Re: can't return value Lew <lewbloch@gmail.com> - 2012-09-13 10:53 -0700
      Re: can't return value Stuart <DerTopper@web.de> - 2012-09-13 09:45 +0200
        Re: can't return value "bilsch" <king621@comcast.net> - 2012-09-13 03:55 -0700
        Re: can't return value Jukka Lahtinen <jtfjdehf@hotmail.com.invalid> - 2012-09-13 15:06 +0300
          Re: can't return value Stuart <DerTopper@web.de> - 2012-09-13 20:53 +0200
  Re: can't return value Roedy Green <see_website@mindprod.com.invalid> - 2012-09-12 20:54 -0700

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