This week's book giveaway is in the OO, Patterns, UML and Refactoring forum.
We're giving away four copies of Refactoring for Software Design Smells: Managing Technical Debt and have Girish Suryanarayana, Ganesh Samarthyam & Tushar Sharma on-line!
See this thread for details.
The moose likes Beginning Java and the fly likes String references/values Big Moose Saloon
  Search | Java FAQ | Recent Topics | Flagged Topics | Hot Topics | Zero Replies
Register / Login


JavaRanch » Java Forums » Java » Beginning Java
Bookmark "String references/values" Watch "String references/values" New topic
Author

String references/values

Gerry Giese
Ranch Hand

Joined: Aug 02, 2001
Posts: 247
I'm brain dead or something, because I got myself all confused over String. Which of the following is better, and why? I was about to do Case 3 when I started getting all loopy. This has been a long day, so forgive me! Oh, and if you happen to know where a reference is that explains your answer, I'd appreciate it!
Case 1

Case 2

Case 3

Case 4


CJP (Certifiable Java Programmer), AMSE (Anti-Microsoft Software Engineer)
Author of Posts in the Saloon
Bear Bibeault
Author and ninkuma
Marshal

Joined: Jan 10, 2002
Posts: 63195
    
  69

Hi Gerry,
You have two different outcomes here. In one scenario you set the member all to the empty string, and in the other scenario you set them to a string that you pass.
In either case you should probably never do something like:

All this does is create a spurious object. Since Strings are immutable, creating the new String instance gives you absolutely no advantage over:

hth,
bear
[ April 26, 2002: Message edited by: Bear Bibeault ]

[Asking smart questions] [Bear's FrontMan] [About Bear] [Books by Bear]
 
I’ve looked at a lot of different solutions, and in my humble opinion Aspose is the way to go. Here’s the link: http://aspose.com
 
subject: String references/values
 
It's not a secret anymore!