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Why String class is immutable?

Vishal A Shah

Joined: Jan 18, 2010
Posts: 4
Hello Friends

I have small doubt..hope you guys will not mind to answer it.

Can I now why String classes are immutable ? what is the exact rational behind it? if we have StringBuffer which provides more functionality then String class then why we are not obsulating String class? what is the need of String class in latest java version?

Please share your inputs

Henry Wong

Joined: Sep 28, 2004
Posts: 19926

Please do a search on these forums -- you will see that this question has been asked and answered many times.

Please take a look at the Javadoc for String and StringBuffer -- you will see that neither can obsolete the other. as there are tons of stuff in both that isn't in the other.


Books: Java Threads, 3rd Edition, Jini in a Nutshell, and Java Gems (contributor)
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subject: Why String class is immutable?
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