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Characteristics of oop
This document provides an overview of object-oriented programming (OOP) concepts. It defines OOP as a programming technique that uses objects and classes. Key concepts discussed include classes and objects, inheritance, data abstraction, encapsulation, and polymorphism. Benefits of OOP include reusability, extensibility, understandability and security. Inheritance allows reuse of existing classes, and can be single, multiple, public, protected or private. Data abstraction hides background details and provides essential information. Encapsulation binds data and functions that manipulate the data. Polymorphism enables different object types to respond to the same function name.
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Introduction to Object Oriented Programming by Rasim Izhar Ali.
OOP is a programming technique based on objects, with examples like C++, PHP, Java, and Objective-C.
Introduction to classes and objects, fundamental concepts in OOP.
Classes group objects with the same attributes and behaviors, including name, attributes, and behavior.
An object represents a real-world entity, identified by name, with identity, state, and behavior.
Key benefits of OOP include reusability, extensibility, decomposability, composability, understandability, and security.
Core characteristics include inheritance, data abstraction, data encapsulation, and polymorphism.
Inheritance allows reusing classes; existing classes to build new ones.
Single inheritance allows a child class to inherit from one base class; multiple inheritance allows inheriting from multiple classes.
Public inheritance maintains the access status of parent class members in the derived class.
In protected inheritance, access status is restricted while maintaining protected access of members.
In private inheritance, access status is restricted for parent class members in the derived class.
Overview of data abstraction as a concept in OOP.
Data abstraction involves providing essential information while hiding unnecessary details.
Advantages include simplified development, improved testing, reusability, security, and easier modifications.
Introduction to data encapsulation as an OOP concept.
Data encapsulation binds data and functions together to protect them from misuse.
Overview of polymorphism in OOP.
Polymorphism allows different object types to use functions of the same name, determined at runtime.
Types of polymorphism include virtual functions, operator overloading, and function overloading.
Thank you for your attention to the OOP presentation.
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Characteristics of oop
- 1. OOP (Object Oriented Programming) APresentation By: Rasim Izhar Ali BECS/S13/0109
- 2. What is OOP? ObjectOriented Programming (OOP) is a programming technique in which programs are written on the basis of objects. Examples: C++ PHP Java Objective-C
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- 4. Classes(Classification Of Objects) Aclass is a group of objects with same attributes and behavior. The characteristics of a class are : A name Attributes Behaviour
- 5. What is Object? •An object represents an entity in the real world such as a person , thing or concept etc. • An object is identified by its name. All object have these characteristics : Identity State Behaviour
- 6. Reusability Extensibility Decomposability Compos ability Understandability Security Benefits Of OOP
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- 8. Characteristics Of OOP Inheritance Data Abstraction Data Encapsulation Polymorphism
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- 10. Inheritance A programming techniquethat is used to reuse an existing class to build a new classis known as inheritance.
- 11. Categories Of Inheritance 1)Single Inheritance: In Single Inheritance, the child class inherits all data members and member functions of the base class. 2) Multiple Inheritance: In Multiple Inheritance, the child class inherits all data members and member function of base class.
- 12. Types Of Inheritance 1)Public Inheritance: In public inheritance, the access status of parent class members in the derived class remains the same. • The public members of parent class become public members of derived class. • The private members of parent class become private members of derived class. • The protected members of parent class become protected members of derived class.
- 13. 2) Protected Inheritance: Inprotected inheritance, the access status of parent class members in derived class is restricted. • The public members of parent class become protected members of derived class. • The protected members of parent class become protected members of derived class. • The private members of parent class become private members of derived class.
- 14. 3) Private Inheritance: Inprivate inheritance, the access status of parent class members in the derived class is restricted. • The private members of parent class become the private members of derived class. • The public members of parent class become the private members of derived class. • The protected members of parent class become the private members of derived class.
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- 16. Data Abstraction Data abstractionor information hiding refers to providing only essential information to the outside world and hiding their background details.
- 17. Advantages Of DataAbstraction Simplification of software development. Testing and debugging. Reusability. Security. Modifications to the representation of a data type.
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- 19. Data Encapsulation Data Encapsulationis an Object Oriented Programming concept that binds together the data and functions that manipulate the data and that keep both safe from outside interference and misuse.
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- 21. What is Polymorphism? Theword polymorphism is a combination of two words poly and morphism. Poly means many and morphism means form. In object-oriented programming, polymorphism is the ability of objects of different types to respond to functions of the same name. The user does not have to know the exact type of the object in advance. The behavior of the object can be implemented at run time.
- 22. Types Of Polymorphism Virtual functions. Operator overloading. Function overloading.
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