C++ is known to be a very powerful language. C++ allow you to have a lot of control as to how you use computer resources so, in the right hand its speed and ability to cheaply use resources should be able to surpass other language. thanks to C++'s performance.

1. C++(PROGRAMMING LANGUAGE)
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2. HISTORY OF C++
 In the early 1980’s Bijarne Stroustrup who was working for Bell
labs develops c++.
 C++ was originally known as C with classes as two language
contributed to int design.
 C++ is a subset of c as it is an Object Oriented Programming./
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3. OOP’S CONCEPT
C++ is based on OOPS concept. OOPS means Object Oriented
Programming. In this concept problem is looked in term of objects rather
than procedure. All object oriented programming language has to the
following concept in common.
 Abstraction
 Encapsulation
 Polymorphism
 Inheritance
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4. ABSTRACTION
Abstraction is a feature in which only essential details of the object are
shown and non-essential details are ignored. Consider the example of a
car in a car the accelerator pedal steering wheel and the break pedal are
same of the main details essential for driver so these essential details are
shown to the driver.This feature simply means looking for what you want.
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5. ENCAPULATION
Encapsulation is a feature of hiding the complexity at the data. Consider
the example of a car to stop the car we just apply the break and we don’t
need the mechanism of breaking system .The mechanism behind
breaking is encapsulated this features hides the implementations details
of an object and hence also called as data hiding.
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6. POLYMORPHISM
The term polymorphism has been derived from Greek words
‘ploy’ and ‘morphism’ which means ‘many ’and ‘form’ respectively.
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7. INHERITANCE
Inheritances is features of creating a new class with the properties of
an existing class with the properties of an existing class along with
some additional characteristics .Unique to the new class for example.
You inheritances some characteristics like your appearance language
and certain behavior from your parents and also you have some
additional unique characteristics this features is called inheritances.
inheritances thus allows responsibility of the code in C++.
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8. INPUT OUTPUT STATEMENT
Input output standards for i/o the process of sending the data
to the computer is called as i/o and the process of display the
data is called as output the<< than and >> symbols used in the
program are called cascading operators these are predefined
opertors that are used for output and input.
Cin with >>symbolfor getting input from the user.
Cout with << symbol to display the output.
>>extraction operation [get to].
<<insertion operation [put to].
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9. Consider this program
//sample program//
#include<iostream.h>
Void main()
{
Int number;
Cout<<”enter the number”;
Cin>>number;
}
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10. C++ HAVING FOLLOWING KEYWORDS
Asm Catch Float Long Return
Auto Default Friend Overload Short
Break Do For New Sizeof
Case Delete Goto If Singed
Static Union Class Inline Else
Assigned Const Extern Opertors Protected
Continue Enum Integrin Register Template
This Char Void Try Type def’n
Throw Double valuable public switch
Try While private struct virtual
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11. CLASS
A class is a similar to a structure data type
but it consist of not only data elements but
also function which are operated on data
elements a class is a way to bind data and its
function together.
SYNTAX:
Class userdefined_name
{
Private:
Data_type member;
Public:
Data_type member;
Member function;
};
The body a class is enclosed.
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