Java – Comparision/Difference of String, StringBuffer & StringBuilder | Code Factory

Index Page : Link

Donate : Link

Medium Link : Link

Applications : Link

String	StringBuffer	StringBuilder
Immutable/not changed	Objects are mutable/we can change	Objects are mutable/we can change
have concat method	have append method	have append method
equals() method meant for content comparison	equals() method meant for reference/address comparison	equals() method meant for reference/address comparison
there is no any capacity concept	default capacity is 16	default capacity is 16
	every method present in StringBuffer is Synchronized	no method present in StringBuilder is Synchronized
String is thread safe (All immutable object bydefault thread safe because no one can change value)	at a time only one thread is allow to operate on StringBuffer object and hence it is thread safe	at a time multiple thread are allowed to operate on StringBuilder object and hence it is not thread safe
	threads are required to wait to operate on StringBuffer object and hence relatively performance slow	threads are not required to wait to operate on StringBuilder object and hence relatively performance is high
	introduced in 1.0v	introduced in 1.5v