What is the difference between StringBuffer and StringBuilder class?

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gptnitesh

  • Sep 11th, 2007
 

StringBuilder is introduced in java 1.5

StringBuffer is designed to be thread-safe and all public methods in StringBuffer are synchronized. StringBuilder does not handle thread-safety issue and none of its methods is synchronized.

StringBuilder has better performance than StringBuffer under most circumstances.

santhakumarchimata

  • Mar 15th, 2011
 

StringBuilder is a feature of Java 5


Methods in StringBuffer are Synchronized & thread safe.
Methods in StringBuilder are not Synchronized & not thread safe.

If you want faster access use StringBulder. If you want your string to be thread safe, use StringBuffer.

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