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Example

Use the switch statement to calculate the weekday name:

int day = 4;

switch (day) {

  case 1:

    System.out.println("Monday");

    break;

  case 2:

    System.out.println("Tuesday");

    break;

  case 3:

    System.out.println("Wednesday");

    break;

  case 4:

    System.out.println("Thursday");

    break;

  case 5:

    System.out.println("Friday");

    break;

  case 6:

    System.out.println("Saturday");

    break;

  case 7:

    System.out.println("Sunday");

    break;

}

// Outputs "Thursday" (day 4)

 

Definition and Usage

The switch keyword selects one of many code blocks to be executed.

From the example above, it works like this:

  • 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.
  • The break keyword is used to break out of the switch block when a match is found

Related Pages

Read more about the switch statement in our Java Switch Tutorial.

 

 

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