Key Concepts

Review core concepts you need to learn to master this subject

Basic Output

New Line

Program Structure

Compile Command

Execute Command

Single-line Comments

Multi-line Comments

Basic Output

std::cout << "Hello World!\n";

std::cout is the “character output stream” and it is used to write to the standard output. It is followed by the symbols << and the value to be displayed.

Hello World
Lesson 1 of 2
  1. 1
    Introduction to C++
    There are only two kinds of languages: the ones people complain about and the ones nobody uses. C++ is a programming language created by [Bjarne Stroustrup](https://www.codecademy.com/resources/…
    Start
  2. 2
    Hello World!
    Take a look at the hello.cpp file in the code editor that is placed in the middle of the screen. It’s a C++ program! In our code editor, the file name is displayed at the top: ![File](https:/…
    Start
  3. 3
    Output
    High five! We just got your first program to run. C++, like most programming languages, runs line by line, from top to bottom. Here is the structure of a C++ program: ![Program Structure](https:/…
    Start
  4. 4
    Pattern
    We learned how to output a line of text with the following code: std::cout << “🚙💨\n”; It will output: 🚙💨 We can also output multiple lines by adding more std::cout statements: std::cout << …
    Start
  5. 5
    Review
    Woohoo! You have written a few C++ programs. 🙌 In this lesson, you have learned: - C++ is a general-purpose coding language. - C++ runs line by line, from top to bottom. - std::cout is how you ou…
    Start

What you'll create

Portfolio projects that showcase your new skills

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How you'll master it

Stress-test your knowledge with quizzes that help commit syntax to memory

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