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revised: 10/09/98, 09/01/99, 01/20/00, 07/14/02, 03/01/04, 01/17/06, 05/29/08, 02/05/2011, 07/09/2014

CHAPTER 26 — Object References

Chapter Topics:

This chapter discusses two things: object reference variables and the objects they refer to. These are crucial concepts in programming, and can be confusing. It demands careful study. This chapter was written as my best effort to answer the questions of confused students.

You might wish to study this carefully, as a pre-emptive strike against confusion.


(Review:) In Java, a piece of data either is a data type or is an data type.