hello world c++
To write a "Hello, World!" program in C++, follow these steps:
Include the necessary header file: At the beginning of your code, include the necessary header file using the
#include
directive. In this case, you need to include theiostream
header file to use the input and output stream functionalities.Use the
main
function: In C++, the program execution starts from themain
function. Declare themain
function using the following syntax:int main() { }
.Output the text: Inside the
main
function, use thestd::cout
object to output the desired text. In this case, you want to output "Hello, World!" to the console, so you can use the following statement:std::cout << "Hello, World!";
. The<<
operator is used to insert the text into the output stream.Return from the
main
function: At the end of themain
function, add areturn
statement to indicate a successful program termination. In this case, you can usereturn 0;
to indicate that the program executed successfully.
Here is the complete code for the "Hello, World!" program in C++:
#include <iostream>
int main() {
std::cout << "Hello, World!";
return 0;
}