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What is the reason ?

deepak kukreja
Ranch Hand

Joined: Aug 13, 2001
Posts: 54
We have two classes namely String and StringBuffer.
If we can do everything with StringBuffer, then what is the
need for String class.

Deepak<br />SCJP
Aaron Roberts
Ranch Hand

Joined: Sep 10, 2002
Posts: 174
They are for different purposes. A StringBuffer is used when you want to insert/remove/splice/etc characters on the fly, something Strings can't do. A StringBuffer might be loosely thought of as an ArrayList of chars, since it can grow and shrink dynamically. A String can not change its size.
Joel McNary

Joined: Aug 20, 2001
Posts: 1821

The String class is there for speed/performance. It does not carry the same overhead as a StringBuffer object.

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subject: What is the reason ?