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String references/values

Gerry Giese
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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)
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Bear Bibeault
Author and ninkuma
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Joined: Jan 10, 2002
Posts: 60773
    
  65

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 ]

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