Example of switch statement

Computing the days of the month.

int month, daysOfMonth;
...
switch (month) {
case 4: case 6: case 9: case 11:
  daysOfMonth = 30;
  break;

case 1: case 3: case 5: case 7: case 8: case 10: case 12:
  daysOfMonth = 31;
  break;

case 2:
  daysOfMonth = 28;
  break;

default:
  daysOfMonth = 0;
  System.out.println("Month is not valid");
}

System.out.println("Days: " + daysOfMonth);