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• Container object: contains other objects

• Factory object: creates other objects

• Metaobject: Used to create other objects (similar to a class, but an object)

• Prototype object: a specialized metaobject that creates new objects by copying itself

• Singleton object: only instance of its class for the lifetime of the program

• Filter object: receives a stream of data as its input and transforms it into the object's output

A common anti-pattern is the God object, an object that knows or does too much.

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