value type : Java Glossary

by Roedy Green ©1996-2008 Canadian Mind Products
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value type: In Java a = b makes a copy of b and puts it in a when a is a primitive e.g. int, long, float or double. Otherwise a is a reference value and receives a pointer (reference) to the same object that b points to. In Java there are no equivalent to C++ structs whose entire structure would be copied to a. I talked with Bill Joy in 1999. At that time he was keen on adding value types to Java, particularly to implement an efficient complex type. However, I have not seen anything come of it.
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