Introduction to C++ Programming

History of C++  Programming

• C++ developed by Bjarne Stroustrup in 1979.
• In AT & T's Bell Labs.
• He was modified C language with some spacial class and developed C++ language.
• C++'s OOP aspect was inspired by a computer simulation language called Simula67.
• Java is written in C++.
• C++ is worlds fourth most used programming language.

Bjarne Stroustrup

Features of C++  Programming

• C++ is a middle level language.
• C++ supports principle of object oriented paradigm.
• C++ joins three separate programming traditions :

1. The procedural language tradition, represented by C.
2. The object-oriented language tradition, represented by the class enhancements C++ add to C.
3. Generic programming, supported by C++ templates.

Comparison between C and C++   Programming

• C++ is a super set of C language.
• C++ programs can use existing C software libraries.
• C follows top down approach of programming while C++  follows bottom up approach of programming .
• C adopts Procedure Oriented Programming while C++ adopts Object Oriented Programming.

Object Oriented Programming  

• OOPs is a programming approach which revolves around the concept of "Object".
• Any entity in the system that can be defined as a set of properties and set of operations performed using entity's property set, is known as Object.
• Object Oriented Programming have five key principle is:

1. Encapsulation
2. Data Hiding
3. Abstraction 
4. Polymorphism
5. Inheritance

Classes and Objects 

• Class is a blueprint of an object.
• Class is a description of Object's property set and set of operation.
• Creating class is as good as defining a new data type.
• Class is a means to achieve encapsulation.
• Object is a run time entity.
• Object is an instance of a class.

Example of class format :

      class box

       { 

          int l,b,h;

          void setDimension(int x,int y,int z)

          {....}

           void showDimension()

           {.....}

      };

box b1; (here box is datatype and b1 is object).

Thanks for reading I hope you got your doubt if you have any problem then you tell me by comment or facebook.