Difference b/w String Buffer and String Builder

Question

nikhil kumar · Accepted Answer

string BUFFER : string buffer is mutable class where we can change the existance one after JDK 1.5 version it comes on  IT industry  string buffer is thread safe where string builder is not thread safe string buffer is syncronized whereas string builder is not syncronized

Raju · Answer

StringBuffer synchronized
StringBuilder is non-Synchronized.
StringBuffer is Thread-safe.
StringBuilder is not Thread-safe.
StringBuffer performance is low.
StringBuilder performance is High.

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