About C++
Any fool can write code that a computer can understand. Good programmers write code that humans can understand.
- Martin Fowler
The C++ programming language was developed by Bjarne Stroustrup and his team at Bell Laboratories (AT&T. USA) to implement simulation projects in an object-oriented and efficient manner. In early 1989, an ANSI committee (American National Standards Institute) was established to standardize the C++ programming language.
The major reason behind the success and popularity of C++ is that it supports the oops concepts.
"Object-oriented technology is considered the ultimate paradigm for modeling and information, be it data and logic."
The name C++ (Cplusplus) was coined by Rick Mascitti where "++" is the C increment operator. The latest C++ standard document was issued by ANSI/ISO in year 2017.
What is C++?
C++ is a general-purpose, case-sensitive, free-form programming language which is used to create computer programs.
Applications Of C++
1. For Developing Graphical application like computer and mobile games
2. Used for designing OS like Window XP
3. Few parts of apple OS X are written in C++
4. C++ is used for designing database like MySQL
5. Internet browser Firefox are written in C++
6. Applications of adobe systems Like Photoshop, ImageReady, Illustrator and Adobe Premier are developed in C++
7. Google file system and Google Chromium are also written in C++
8. Google also uses C++ for Indexing.
Object-Oriented Programming (OOPs):-
C++ supports object-oriented programming, there are four types of object-oriented programming used in C ++:
1. Inheritance
2. Polymorphism
3. Encapsulation
4. Abstraction
First C++ Program:-
#include <iostream>
using namespace std;
int main() {
cout << "Hello World!";
return 0;
}
● It gives an idea about the structure and skeleton of a C++ program.
● #include <iostream> is a header file
● using namespace std:- std is the standard namespace. cout, cin and lot of other things are defined in it.
● A special word main, which denote the starting point for execution of the program.
● All program start their execution from main.
● Braces are used to start and end every block of the program.
● { denots start of block
● } dentos end of block
● cout is the only executable statement in the above program.
Exercise:-
1. C++ was originally developed by
View Answer
2. latest C++ standard document was issued by ANSI/ISO in which year?
View Answer
Program
Print Number Entered by User
#include <iostream>
using namespace std;
int main()
{
int number;
cout << "Enter an integer: ";
cin >> number;
cout << "You entered " << number;
return 0;
}
Output:
Enter an integer: 23 You entered 23
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