Why is there no primitive type for String?

java string primitive-types
user241924 picture user241924 · Jan 20, 2010 · Viewed 32.1k times · Source

Why doesn't Java have a primitive type for String when most of the other data types do?

Answer

Jon picture Jon · Jan 20, 2010

String is an object, it isn't a primitive type at all, just an array of chars. The reason why primitive types exist in Java at all is an interesting one, excerpt from a James Gosling interview:

Bill Venners: Why are there primitive types in Java? Why wasn't everything just an object?

James Gosling: Totally an efficiency thing. There are all kinds of people who have built systems where ints and that are all objects. There are a variety of ways to do that, and all of them have some pretty serious problems. Some of them are just slow, because they allocate memory for everything. Some of them try to do objects where sometimes they are objects, sometimes they are not (which is what the standard LISP system did), and then things get really weird. It kind of works, but it's strange.

Just making it such that there are primitive and objects, and they're just different. You solve a whole lot of problems.

So in short the primitive types exist for efficiency reasons.

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