C++ Switch

C++ Switch Statement

Instead of writing many if..else if statements, you can use the switch statement to execute one of many code blocks.

How it Works

The switch expression is evaluated once. The value of the expression is compared with the values of each case. If there is a match, the associated block of code is executed.

int day = 4;
switch (day) {
  case 1:
    cout << "Monday";
    break;
  case 2:
    cout << "Tuesday";
    break;
  case 3:
    cout << "Wednesday";
    break;
  case 4:
    cout << "Thursday";
    break;
  default:
    cout << "Weekend!";
}
// Outputs: Thursday

The break and default Keywords

• break: Stops the execution of more cases inside the switch. Without it, the code will continue to execute the next cases even if they don't match!
• default: Optional. Specifies some code to run if there is no case match.