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A Hello World program is a simple program that outputs "Hello, World!" on the screen. It is often used to introduce a new programming language to beginners.
Example
#include <iostream>int main() {std::cout << "Hello, World!";return 0;}Explanation
#include : This line includes the standard input-output stream library, which allows us to use std::cout for output.
int main(): This is the main function where the execution of the program begins.
std::cout << "Hello, World!";: This line prints "Hello, World!" to the console.
return 0;: This statement ends the main function and returns 0 to the operating system, indicating that the program ended successfully12.
Important Points
This basic structure helps beginners understand the syntax and structure of a C++ program before diving into more complex topics.
Learn more✕This summary was generated using AI based on multiple online sources. To view the original source information, use the "Learn more" links. C++ "Hello, World!" Program
Learn how to write a simple C++ program that prints Hello, World! on the screen. See the code, explanation and examples of using std::cout, #include and main() function.
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Dec 22, 2013 · Learn how to print Hello World! in C++ with a simple example code that shows the basic syntax and structure of a C++ program. The code includes the #include directive, the main function, the std::cout object, the << operator, and the return statement.
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Apr 6, 2021 · Hello World - Writing, Compiling and Running a C++ Program. [edit | edit source] Below is an example of a simple C++ program: // 'Hello World!' program #include<iostream>intmain(){std::cout<<"Hello World!"<<std::endl;return0;} When you write a …
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