RE: Java - Backwards - Second Draft

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Tr flamebalrog

On 2005-02-24 20:18:01, SAJChurchey wrote
>


>public static String Backwards(String str){

>      if(str == null || str.trim().equals(""))

>        return "";

>      str = str.trim();

>      StringBuffer newString = new StringBuffer(str);

>      return newString.reverse().toString();

>}

>

A not-null-and-not-empty-and-not-space-only String (one that will be reversed) is trimmed twice with your code (1st to test it, 2nd after the test). You could avoid it.

Also, I think ' "literalString".equals(expression) ' is faster than ' expression.equals("literalString") '...can anyone confirm ?

- Is it a feature or a bug ? -

Replies:

Desktop Version - CinC snarkles 2005-02-15 17:19:31
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        2 questions - Maj anvar 2005-03-18 17:19:21
        RE: 2 questions - Tr flamebalrog 2005-03-24 22:41:05
        RE: 2 questions - CinC snarkles 2005-03-18 17:41:40
        RE: 2 questions - Lt CyberTNT 2005-03-18 17:41:38
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      - np -nt- - Tr flamebalrog 2005-02-27 22:55:00
- Java - Backwards - Second Draft - Cpt SAJChurchey 2005-02-24 20:18:01
  - Added to SVN - Cpt SAJChurchey 2005-03-14 19:29:48
  - RE: Java - Backwards - Second Draft - Ret. Gen D-Cypell 2005-02-26 19:22:23
    - and factor trim() as well ? -nt- - Tr flamebalrog 2005-02-27 01:26:55
    - In this case . . . - Cpt SAJChurchey 2005-02-26 23:18:34
  - RE: Java - Backwards - Second Draft - Lt dopel 2005-02-26 16:51:44
    - I had to take str=str.trim() out - Cpt SAJChurchey 2005-02-26 19:16:27
    - Nope.... - Ret. Gen D-Cypell 2005-02-26 19:14:49
  - >RE: Java - Backwards - Second Draft - Tr flamebalrog 2005-02-26 02:15:52 <
    - Resolved - Cpt SAJChurchey 2005-02-27 19:54:13
    - RE: Java - Backwards - Second Draft - Ret. Gen D-Cypell 2005-02-26 19:13:56
      - Thx for your input [bit more] - Tr flamebalrog 2005-02-27 23:01:18
    - RE: Java - Backwards - Second Draft - Lt dopel 2005-02-26 18:38:08
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        absolutly - Lt dopel 2005-02-18 19:48:47
        I do not think it effects the ease of read - Cpt SAJChurchey 2005-02-18 20:27:02
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        Version using StringBuffer - Cpt SAJChurchey 2005-02-18 16:54:23
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Guest:
Subject:
Message:	On 2005-02-26 02:15:52, flamebalrog wrote >On 2005-02-24 20:18:01, SAJChurchey wrote >>[code] >>public static String Backwards(String str){ >> if(str == null \|\| str.trim().equals("")) >> return ""; >> str = str.trim(); >> StringBuffer newString = new StringBuffer(str); >> return newString.reverse().toString(); >>} >>[/code] > >A not-null-and-not-empty-and-not-space-only String (one that will be reversed) is trimmed twice with your code (1st to test it, 2nd after the test). You could avoid it. > >Also, I think ' "literalString".equals(expression) ' is faster than ' expression.equals("literalString") '...can anyone confirm ?
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