27.2.1: C++ Examples
- Page ID
- 102958
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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 streamsint main()begins the main function, which returns an integer value{begins a block of codestd::coutis 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
- Code::Blocks
- Dev-C++
- Microsoft Visual Studio
References
- Wikiversity: Computer Programming
-
Wikipedia: C++
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TIOBE: Index
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Wikibooks: Programming Fundamentals/Hello World
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