Conclusion
(Tutorial Page 29)
Object-orientation is a new way of looking at things we already know
OO means Inheritance
Objects can inherit from other objects thereby reusing what was done already.
OO means Polymorphism
Objects in different classes may provide similar services in different ways with a different result.
OO means Encapsulation
Objects hide implementation from the others to protect the data and processes by which something is done.
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