sunil belurgikar

• Sep 29th, 2005

 

Mutable string means we can append to that string.example StringBuffer object is mutable string.String is immutable object

when we declre String="abc"; a string object abc with fixed length is created.We cant add anything to it .If we do java simply creates a new object.

Sarje

 Profile Answers by Sarje 

• Aug 19th, 2009

 

immutabe string means once string is created you can not insert or append or remove any character from the string. Since java.lang.String class is immutable thess operations are not allowed in it.
mutable string means you can insert,append or delete any character from it.
Since java.lang.StringBuilder is mutable so insertion or deletion or appening character is possible here.