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What is the differnence between String Buffer and String
builder despite having knowledge that String builder is
faster than String Buffer and last one is threadsafe.please
tell another important difference.
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Answer / rinaldoshi kalol
String is immutable whereas StringBuffer and StringBuilder
can change their values.
The only difference between StringBuffer and StringBuilder
is that StringBuilder is unsynchronized whereas
StringBuffer is synchronized. So when the application needs
to be run only in a single thread then it is better to use
StringBuilder. StringBuilder is more efficient than
StringBuffer.
Criteria to choose among String, StringBuffer and
StringBuilder
If your text is not going to change use a string Class
because a String object is immutable.
If your text can change and will only be accessed from a
single thread, use a StringBuilder because StringBuilder is
unsynchronized.
If your text can changes, and will be accessed from
multiple threads, use a StringBuffer because StringBuffer
is synchronous.
| Is This Answer Correct ? | 16 Yes | 1 No |
Answer / sanjay
WHEN AN APPLICATION NEEDS TO BE RUN ONLY BY SINGLE THREAD
IT IS BETTER TO USE STRING BUILDER BECAUSE IT IS
UNSYNCHRONIZED
WHEN AN APPLICATION NEEDS TO BE RUN BY MULTIPLE THREADS IT
IS BETTER TO USE STRING BUFFER BECAUSE IT IS SYNCHRONIZED
| Is This Answer Correct ? | 9 Yes | 3 No |
Answer / vinodkumar uttara student
StringBuilder all methods are not synchronized , nothing
changes done in this class , it is same as StringBuffer.I
mean to say , more than one thread can be execute
StringBuilder object , because there is not a concept of
lock on object , any thread can execute on this object.Where
as StringBuffer class all methods are synchronized only one
thread at time can access synchronized method , because it
get lock on object.
Please help me , if i am right?
is it correct,
thanks for the reply
| Is This Answer Correct ? | 1 Yes | 2 No |
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