Java Forums

Main Menu
Home
Today's Posts
FAQ
Search
Contact Us

Java Network
Linux Archive
Java Tips
Java Tips Blog

Sponsored Links





Welcome to the Java Forums.

You are currently viewing our boards as a guest which gives you limited access to view most discussions and access our other features. By joining our free community, you will:

  • have access to post topics
  • communicate privately with other members (PM)
  • not see advertisements between posts
  • have the possibility to earn one of our surprises if you are an active member
  • access many other special features that will be introduced later.

Registration is fast, simple and absolutely free so please, join our community today!

If you have any problems with the registration process or your account login, please contact us.

Reply
 
LinkBack Thread Tools Display Modes
  #1 (permalink)  
Old 05-04-2008, 05:13 PM
Member
 
Join Date: Mar 2008
Posts: 4
cakeman is on a distinguished road
Help with a very simple method for a very simple beginner.
Hi Everybody

How would I write a method / line of code to test wether or not an instance variable referenced a String? I'm trying to write a method that returns true if the variable references a String but I'm getting nowhere fast.

Many Thanks

Cakeman
Bookmark Post in Technorati
Reply With Quote
Sponsored Links
  #2 (permalink)  
Old 05-04-2008, 07:01 PM
sukatoa's Avatar
Senior Member
 
Join Date: Jan 2008
Location: Cebu City, Philippines
Posts: 527
sukatoa is on a distinguished road
Send a message via Yahoo to sukatoa
How did you assigned that instance variable? Is it an Object variable?
i am little bit doubt, can you show more info?
__________________
A specific, detailed, simple, well elaborated, and "tested before asking" question may gather more quick replies. hopefully
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
Bookmark Post in Technorati
Reply With Quote
  #3 (permalink)  
Old 05-04-2008, 07:27 PM
Member
 
Join Date: Mar 2008
Posts: 4
cakeman is on a distinguished road
Hi

The instance variables will be set with a mutator method and not in the constructor so when new instances are first created, the instance variable is null. Just as I'm writing this I think I've sussed it. The method I need to write needs to return true if the instance variable references a string, false otherwise so, if the variable is null, it returns false. I'll try that first and post my results
Bookmark Post in Technorati
Reply With Quote
Sponsored Links
Reply


Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

vB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
A Simple Web Server Java Tip java.net 0 04-07-2008 10:04 PM
Simple Method Question Froz3n777 New To Java 2 02-13-2008 04:39 AM
Simple java abhiN New To Java 1 01-16-2008 12:13 PM
simple GUI dim_ath New To Java 3 01-07-2008 05:00 PM
simple code elizabeth New To Java 1 08-07-2007 08:49 PM


All times are GMT +3. The time now is 05:21 PM.


VBulletin, Copyright ©2000 - 2008, Jelsoft Enterprises Ltd.
Content Relevant URLs by vBSEO ©2007, Crawlability, Inc.
Copyright ©2006 - 2007, www.java-forums.org