Example: Hello World Program in C++ Using using User-defined Function

C
C++
C#
Java
Python
PHP

// HELLO WORLD PROGRAM IN C++ USING USER-DEFINED FUNCTION
#include <iostream>
using namespace std;

// Step-1 Create a function to display Hello World
void displayMessage()
{
    cout << "HELLO, WORLD!" << endl;
}

// It's the main function of the program
int main()
{
    // Step-2 Display a label
    cout << "C++ HELLO WORLD PROGRAM" << endl;

    // Step-3 Call the function to show the message
    displayMessage();

    return 0;
}