The switch Statement

This lesson covers the switch statement, used to branch logic based on several possible values. It's for anyone searching "C++ switch statement usage."

The form switch (value) { case value1: ... break; ... default: ... } lets you write multiple branches for a single value. In some cases it's more readable than stacking up several if/else if blocks.

The example displays a different message based on a number representing the day of the week. Skip the break;, and execution "falls through" into the next case's logic — worth watching out for.

A common early mistake is exactly that — forgetting break;. Forget it by accident, and code you didn't intend to run for that case executes too, a frequent source of bugs.

In real projects, the switch statement is used when you want to branch logic based on a fixed set of possible values — a day of the week, a status, a menu selection, and more.

📖 Reference code

#include <iostream>

int main() {
    int day = 3;
    switch (day) {
        case 1:
            std::cout << "Monday" << std::endl;
            break;
        case 2:
            std::cout << "Tuesday" << std::endl;
            break;
        case 3:
            std::cout << "Wednesday" << std::endl;
            break;
        default:
            std::cout << "Some other day" << std::endl;
    }
    return 0;
}

✍️ Your code

Type your code, then press "Run"

🧪 This site can't compile or run C++ directly, so it checks on the spot whether what you typed matches the reference code (scoring happens entirely in your browser — nothing is sent anywhere).