Printing Text with cout

Printing Text with cout

The easiest way to get words on the screen: cout plus << plus text in quotes.

One line

#include <iostream>
using namespace std;

int main() {
    cout << "Hello, world!";
    return 0;
}

This prints: Hello, world!

Two cout statements, same line

Both cout statements write with no break in between, so the console shows one line:

cout << "Hello, world!";
cout << " I am learning C++";

Output:

Hello, world! I am learning C++

Chaining many pieces

You can glue several parts together in one statement:

cout << "Name is " << "Bilbo" << ".";

Result: Name is Bilbo.

The golden rules

• Put text inside double quotes "...".
• Each << pushes the next piece out.
• Without endl or \n, everything stays on the same line.

TL;DR

• cout << "text" prints text.
• Two cout lines without a newline share one console line.
• Chain pieces: cout << "a" << "b" << "c";
• Add \n or endl to jump to a new line (that's the next lesson!).