explain the difference between string builder and string buffer classes

Hi,

Here is my code

public static void main(String[] args) {

String s1 = "abc"; StringBuffer s2 = new StringBuffer(s1); StringBuffer s3
= s2; StringBuffer s4 = new StringBuffer(s1);

}

in this example how many objects are created ?

could you please explain.

View Answers

April 13, 2012 at 12:22 PM

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.

For more information, visit the following link:

http://www.roseindia.net/java/java-tips/data/strings/23stringbufferetc.shtml

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