Programming Fundamentals/Introduction Examples C++

Overview

C++ is a general-purpose programming language. It has imperative, object-oriented and generic programming features, while also providing facilities for low-level memory manipulation. C++ was developed by Bjarne Stroustrup at Bell Labs starting in 1979 as an extension of the C language. The C++ programming language was initially standardized in 1998.^[1]

C++ is one of the most popular current programming languages^[2] and is often used in computer science courses.

Example

Hello World

 // This program displays "Hello world!"
 //
 // References:
 // http://www.cplusplus.com/doc/tutorial/program_structure/
 #include <iostream>
 
 int main()
 {
     std::cout << "Hello world!";
 }

Output

Hello world!

Discussion

Each code element represents:^[3]

// begins a comment
#include <iostream> includes standard input and output streams
int main() begins the main function, which returns an integer value
{ begins a block of code
std::cout is standard output
<< directs the next element to standard output
"Hello world!" is the literal string to be displayed
; ends each line of C++ code
} ends a block of code

C++ IDEs

There are many free cloud-based and local IDEs available to begin coding in C++. Check with your instructor or do your own research for recommendations.

Cloud-Based IDEs

Local IDEs

References

Wikiversity: Computer Programming

← Hello World

Programming Fundamentals

Introduction Examples CSharp →

[1] Wikipedia: C++

[2] TIOBE: Index

[3] Programming Fundamentals/Hello World

[1]

[2]

[3]