Basic concepts of OOP

R.Prabhu132912

05/01/23 Prabhu Mike 1

• It is necessary to understand some concept used extensively in oop. These include:

• Object• Classes• Data abstraction and encapsulation• Polymorphism• Dynamic binding• Message passing

05/01/23 Prabhu Mike 2

Objects:

• In OOP, a problem is considered as a collection of a number of entities called objects. Objects are instances of classes.

Classes: • It is user defined data type. It consists of

variable & functions

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Data abstraction and Encapsulation• The wrapping up of data and functions into a

single unit (called class) is known as encapsulation. Data encapsulation is the most striking features of a class.

• Abstraction refers to the act of representing essential features without including the background details or explanations.

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Inheritance:

• Inheritance is the process by which objects of one class acquire properties of objects of another class

Polymorphism:• Polymorphism means one name, multiple

forms. It allows us to have more then one function with the same name in a program.

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Dynamic binding:

• Binding refers to the linking of a procedure call to the code to be executed in response to the call.

• Dynamic binding also known as late binding• It associated with polymorphism and

inheritance.

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Benefits of OOP

• It is possible to have multiple instances of an object to co-exist without any interference.

• It is possible to map objects in the problem domain to those in the program.

• It is easy to partition the work in a project based on objects.

• Software complexity can be easily managed.

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Applications of OOP

• Real-time systems• Simulation and modeling• Object-oriented database• Hypertext, hypermedia and expertext• Expert systems• Neural networks and parallel programming• Decision support and office automation systems• CIM/CAM/CAD systems

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THANK YOU…

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