Comments

Learn to write single-line (//) and multi-line (/* */) comments in C++.

Comments are notes for the programmer; the compiler ignores them. C++ has two kinds of comments:

Single-line comment: starts with // and runs to the end of the line
Multi-line comment: starts with /* and ends with */, spanning several lines

Comments explain code, temporarily disable lines or mark sections. But do not write comments instead of working code; code should explain itself.

Using comments

Comments make code readable. They are especially useful for:

Example:

// User score
int score = 90;
/* In this section
   the score is computed */

With clear names you need fewer comments; comments should explain why, not what.

Add a // comment, a /* */ comment to the program, and print the message Program ready with std::cout.

Show example solution

#include <iostream>

int main() {
    // Information
    /* This program is ready */
    std::cout << "Program ready" << std::endl;
    return 0;
}