What is the difference between String, String Builder, and Buffer?

Answer»

S.no	String	StringBuffer	StringBuilder
1.	IMMUTABLE	Mutable	Mutable
2.	For logic operations, it is slow	Thread-safe	Faster and more efficient
3.	Use it when immutable structure is required.	Use it for creating mutable character SEQUENCE but string CHANGES must be synchronized	Use it for creating mutable character sequence

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