PROGRAMMING LANGUAGE C++

PROGAMMING LANGUAGE ( C++ )

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FACTS OF OOPS

• C++ oops aspect was inspired by a computer simulation language called simula 67.
• some major Operating system of modern times are Written in C++.
• JAVA is written in C++.
• C++ is a Object Oriented Programming ( OOP ) language which resolves around the concept of object .
• An entity in the system that can be defined as a set of properties & set of operations performed using entity property set is known as Object.
• OOP is a set of principle that are used by programmer to handle a large program easily.
• OOP is a method in which we divide our program in objects.

Features of C++ .

• C++ is a Middle level language.
• C++ supports Object Oriented Paradigm.
• C++ joins three separate programming tradition.
• Shared with non OOP predecssor language.
• Objects and classes.
• Class based vs prototype based.
• Dynamic dispatch.
• Encapsulation.
• Composition, Inheitence, and delegetion.
• Polymorphism.
• Open Recursion.

APPLICATION OF OOPS

• Client server system.
• Object Oriented Database.
• Object Oriented Distributed Database.
• Real time system Design.
• Simulation and Modeling system.
• Hypertext, Hypermedia.
• Neural Networking and Parallel programming.
• decision support and office Automation system.

IMPORTANT PRINCIPLES IN OOPS

• ENCAPSULATION 
• ABSTRACTION
• DATA HANDLING 
• POLYMORPHISM
• INHERITENCE

In C++ to avoid corruption of data we need three kinds of access specifier.

• Private 
• Public
• Protected.

CONCEPT OF CLASS AND OBJECT IN OOPS

• Class is a blueprint of an object.
• Class is a description of object property set and set of operation.
• Creating class is as good as definig a new datatype.
• Object is a run time entity.
• Object is an instance of a class.

Difference between Object and Class

    Object                                                                      Class

It is an instance of a class                                            Claas is a blueprint from which object is created.
Object is a real world entity                                        Class is a group of similar objects or information
such as pen, laptop, etc.                                               It is a logical entity.
It is a physical entity.                                                   Class is declared using class keyword.
Object is created through new keyword                       ex. class student{};
mainly. ex s.1 = newstudent();
Obj are created many times as per requirement.         Class is declared once.
It allocates memory when it is created.                       Class doesnt allocate memory when it is created.

C++ Functions.
BENEFITS OF FUNCTION

• Easy to read.
• Easy to modify.
• Avoids rewriting of same code.
• Easy to debug.
• Better memory utilization.

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