Chapter 1.1: Explaining Your First Program

The iostream has information and data of input and output streams.

Quote :

#include <iostream>

This command tells program to use the standard library.

Quote :

using namespace std;

The actual commands are written inside the main function. The program executes the commands in order they are written.

Quote :

int main()

Inputs specified text.

Quote :

cout << "Hello World!" << endl;

Tells system to pause the program.

Quote :

system("pause");

this is good way to explain the lines, thanks, i'm on my way to become a good programmer