Object Oriented Programming using C++

Object Oriented Programming using C++

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  OBJECT ORIENTED PROGRAMMING USINGC++ TOPIC: BASICS OF OOP MR JAYANT P DALVI
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  OOP CONCEPTS Object OrientedProgramming is paradigm or methodology in which we write programs using Classes and Objects. There are 4 OOP concepts: • Inheritance • Abstraction • Encapsulation • Polymorphism
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  INHERITANCE • When oneentity acquires properties of one or more another entities is called Inheritance • It is same like Biological Inheritance in which child extract features of mother and father i.e parents
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  ENCAPLSULATION • Binding dataand code together into a single unit • example: Class of C++ • see class is collection of methods and variables. means variables and methods are binded inside the class that means it is encapsulated inside the class as we observe the diagram.
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  POLYMORPHISM • When onetask is performed in more than one ways • example: languages of different people of countries means all the humans in world communicate with each other but in their languages so here task is to communicate and in different languages are many ways.
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  ABSTRACTION • It isused for hiding internal details but showing only the functionality • example: phone call process here we dont know how signal goes from one phone to another and how communication happens. we just know how to call and dont bother about internal processing of call . That's simple.
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  CLASS • a templateor blueprint from which objects are created • collection of data members and member functions • syntax of writing a class: class classname { data members1,2,.....; //variables member function1(){} member function2(){} }
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  OBJECT • a runtime and real world entity • entity that has state and behaviour • instance of class • syntax of creating a object: classname objectname/reference variable1; classname objectname/reference variable2; classname objectname/reference variable3; and so on
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  EXAMPLE OF HOWTO WRITE A CLASS AND HOW TO CREATE OBJECT class Dog{ String breed; String color; int height; int weight; void run() { cout<<”running”; } } void main() { Dog d1; Dog d2; d1.run(); // how to call a function: USING (.) operator: objectname.functionname(); d2.run(); }
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  THANK YOU