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Related to String

manishkumarlal cs
Greenhorn

Joined: Oct 25, 2005
Posts: 11
whats the different between
String s = "abc";
and
String s = new String("abc");
Jesper de Jong
Java Cowboy
Saloon Keeper

Joined: Aug 16, 2005
Posts: 14269
    
  21

manishkumarlal cs, please check your e-mail for an important message from JavaRanch.


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lei feng
Greenhorn

Joined: Aug 23, 2007
Posts: 26
Originally posted by manishkumarlal cs:
whats the different between
String s = "abc";
and
String s = new String("abc");


String is a very special class in JAVA.
String s=new String("abc"): jvm create a String Object contained "abc" then return a refrence pointed to s. SO s a refrence not a real object.
String s = "abc": jvm first use String.equals to find whether there is a same object in "string pool". if it get it, it will return this refrence pointed to s.if not, it will create a object in "string pool" and return the refrence. so you can try a experiment like this;
String s1 = new String("abc");
String s2 = new String("abc");
use "==" to see whether they are equal. and use "String.equal()" to see whether they are equal.
hope it will help you!
sdit sdit
Greenhorn

Joined: Aug 30, 2007
Posts: 2
[deleted by fbr];
[ August 30, 2007: Message edited by: Fred Rosenberger ]
sdit sdit
Greenhorn

Joined: Aug 30, 2007
Posts: 2
Sorry, has not translated a moment ago
fred rosenberger
lowercase baba
Bartender

Joined: Oct 02, 2003
Posts: 11411
    
  16

Just a reminder - this is an english language only site. I removed the text in the earlier post that was not english.

at the VERY least, if you post non-English, you must provide a translation. Even then, the non-English portion may still get deleted, as we cannot verify the translation.


There are only two hard things in computer science: cache invalidation, naming things, and off-by-one errors
 
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subject: Related to String