JAVA EE: Java Tutorial: Enum in java

Thursday, 4 May 2017

Java Tutorial: Enum in java | Java enum

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Java Tutorial: Enum in java | Java enum

EnumDemo1.java

public class EnumDemo1
{
    public enum Day
    {
        SUNDAY, MONDAY, TUESDAY, WEDNESDAY, THURSDAY, FRIDAY, SATURDAY
    }

    public static void main(String[] args)
    {
        /*
         * The java compiler internally adds the values()
         * method when it creates an enum. The values()
         * method returns an array containing all the values
         * of the enum.
         */
        Day[] daysArray = Day.values();
        for (Day day : daysArray)
        {
            System.out.println(day);
        }

    }
}

Output

SUNDAY
MONDAY
TUESDAY
WEDNESDAY
THURSDAY
FRIDAY
SATURDAY

EnumDemo2.java

public class EnumDemo2
{
    public enum Direction
    {
        NORTH, SOUTH, EAST, WEST
    }

    public static void main(String[] args)
    {
        /*
         * The java compiler internally adds the values()
         * method when it creates an enum. The values()
         * method returns an array containing all the values
         * of the enum.
         */
        Direction[] directionsArray = Direction.values();
        for (Direction direction : directionsArray)
        {
            System.out.println(direction);
        }

    }
}

Output

NORTH
SOUTH
EAST
WEST

EnumDemo3.java

public class EnumDemo3
{
    public enum Season
    {
        WINTER, SPRING, SUMMER, FALL
    }

    public static void main(String[] args)
    {
        /*
         * The java compiler internally adds the values()
         * method when it creates an enum. The values()
         * method returns an array containing all the values
         * of the enum.
         */
        Season[] seasonArray = Season.values();
        for (Season season : seasonArray)
        {
            System.out.println(season);
        }

    }
}