enumExample3.java

interface Day {
    int MONDAY = 1;
    int TUESDAY = 2;
    int WEDNESDAY = 3;
    int THURSDAY = 4;
    int FRIDAY = 5;
    int SATURDAY = 6;
    int SUNDAY = 7;
}

public class EnumExample3 {
    public static void main(String[] args) {

        int day = Day.MONDAY;

        switch (day) {
            case Day.MONDAY:
                System.out.println("Mondays are bad");
                break;
            case Day.TUESDAY:
                System.out.println("Tuesdays are still bad");
                break;
            case Day.WEDNESDAY:
                System.out.println("Wednesdays are so-so");
                break;
        }
    }
}