Object-Oriented ProgrammingAn Introduction To

By Ali Shakiba

If + GoTo

If + GoTo - Complicated

Structured + Methods

Data + Pointer

Data Structure

Structured Programming - Complicated

Object-Oriented Programming (OOP)

OOP Cont.

OOP Concepts

• Class & Object• Encapsulation• Inheritance• Interface• Polymorphism• Visibility

• Benefits

Class & Object

Encapsulation

Inheritance & Specialization

Inheritance & Specialization Cont.

Interface

Interface Cont

Peykan: Driving Wheel, Consume FuelLamborghini: Driving Wheel, Consume FuelHorse: Tack, Consume GrassDonkey: Tack, Consume Grass

Polymorphism

Cars consume fuel…A car can consume regular gasoline/petrolA car can consume premium gasolineA car can consume bio-fule

Visibility

Email: Private, only owner

Member-only mailing list: Only members

Public mailing list: Every one

OOP Benefits

Reuse: Inheritance, Composition

Productivity: Encapsulation, Visibility

Bigger and Better Software