WHAT IS C++
- C++ is an object oriented programming language developed by Biarne stroustrup at AT & T Bell laboratories.
- C++ is an extension of c with a major addition of the class construct feature.
A SIMPLE C++ PROGRAM
# include<iostream.h>
C++ program is a collection of functions. Every C++ program must have a main() function. The iostream file:- The header file iostream should be included at the beginning of all programs that uses one output statement. - Input / Output operator
- Input Operator cin :- The identifier cin is a predefined object in c++ that corresponds to the standard input stream. Here this stream represents keyboard.
Syntax:- cin>>variable;
- The operator >> is known as extraction or get from operator & assigns it to the variable on its right.
- 2. Output operator cout :-The identifier cout is predefined object that represents the standard output stream in c++. Here standard output stream represents the screen.
Syntax:- cout<<string;
- The operator << is called the insertion or put to operator. It inserts the contents of the variable on its right to the object on its left.
- 3. Return type of main():- In C++, main returns an integer type value to the operating system. So return type for main() is explicitly specified as int. Therefore every main() in c++ should end with a return 0 statement.
