Virtues of a Good Object

It represents something that exists in real-life.
It works by contracts (which are represented by the interfaces that it implements).
It is unique.
It is immutable.
Its class doesn't have anything static.
Its name tells us what it is, not what it does.
Its class is either final (can't be extended via inheritance) or abstract (incomplete and uninstantiatable).

page revision: 2, last edited: 12 Dec 2014 22:37