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Immutability | 451 comments | Create New Account
Comments belong to whoever posts them. Please notify us of inappropriate comments.
Immutability
Authored by: Anonymous on Friday, May 04 2012 @ 09:26 AM EDT
String is not special for being immutable. Any class can be designed to be immutable, and to provide "value" semantics for its Equals() and HashCode() methods. String is just the most well-known example of this in the Java language.

Her e is an old paper that gives a good discussion of value semantics and immutability.

The only 2 reasons java.lang.String is special, IMO, are (1) that the language has syntax for creating string literals and concatenating strings, and (2) that low-level language mechanisms such as class-loading and reflection depend on java.lang.String objects. --- a programmer for almost 20 years (5 of full-time Java)

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