scorpiansarath

 Profile Answers by scorpiansarath Questions by scorpiansarath

• Nov 10th, 2006

 

 The methods in string class are not sychronized.Where as the methods of the StringBuffer class can be synchronized .

Srikanth Rao

• Nov 13th, 2006

 

1.String Class is inMutable, and StringBuffer is Mutable

2.String Class Don't have append Method

kishan

• Nov 16th, 2006

 

1)string and string buffer both implements charecter sequence interface,but strings r immutable and string buffers r mutable

2)string buffers works fast for concatenation operations bcz it has append method init

rajendra babu

• Nov 17th, 2006

 

The main diff. b/w string and stringbuffer is

string is immutable(cannot change the content)

stringbuffer is mutable(can change the content)

chinnu

• Nov 18th, 2006

 

strings and string buffer classes are final classes in java.string buffer s have some data manipulation methods are available .in strings are not.string buffer is faster than the string.string s are immutable objects (contents of the objects cant be modified)string buffere s are mutable objects(contents of the objects can be modifies).bbye cheerschinnu

Avitra

• Nov 23rd, 2006

 

String                                           StringBuffer

not sychronized                     Synchronized

Immutable                             mutable

Guest

• Nov 29th, 2006

 

String StringBuffer1) String is immutable. 1)StringBuffer is muatable.2)String is Synchronised

vmshenoy

 Profile Answers by vmshenoy Questions by vmshenoy

• Jan 5th, 2007

 

string is an class and its objects are constt.String Buffer is anotehr class and is  better than string  since it saves time and memory. String buffer includes all functions of string class ,also it has one more fn,i.e sb.reverse();
String objects are constt ,what it means is that the CONTENTS OF String instance cannot b changed after it has been created.This is not with StringBuffer instance.
bye

bihag

• Jan 11th, 2007

 

1.String is immutable               --  StringBuffer is not.

2. String is not threadsafe        -- StringBuffer is thread safe

3. String has concat() for append character   -- StringBuffer has append() method

4. while you create String like, String str = new String(); --> it create 2 object 1 on heap and 1 on "String Constant pool" and that refered by str               --- That's not in StringBuffer , it Create 1 object on heap

5. String is most commanly use in java applications     ---- Mostly used in I/O functions.

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As for Java 5 new class was added -- StringBuilder , that has same functionlity as StringBuffer but it is not thread safe.

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Simmilarity is that .... Both are final class

paddu

• Oct 12th, 2007

 

Strings are immutable that means we cann't change the content or data. Where in the case of StringBuffer we can change the data or content that are presented in that.

sampra

 Profile Answers by sampra 

• Feb 22nd, 2008

 

One majar diff also is string obj are immutable where as string buffer objects are mutable