Learning Java Program

/**
 * This program demonstrates the use of enum types.
 */
public class EnumDemo {

    // Define two enum types -- remember that the definitions
    // go OUTSIDE The main() routine!

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

    enum Month { JAN, FEB, MAR, APR, MAY, JUN, JUL, AUG, SEP, OCT, NOV, DEC }

    public static void main(String[] args) {

        Day tgif;     // Declare a variable of type Day.
        Month libra;  // Declare a variable of type Month.

        tgif = Day.FRIDAY;    // Assign a value of type Day to tgif.
        libra = Month.OCT;    // Assign a value of type Month to libra.

        System.out.print("My name is vijay, since I was born in ");
        System.out.println(libra);   // Output value will be:  OCT
        System.out.print("That's the ");
        System.out.print( libra.ordinal() );
        System.out.println("-th month of the year.");
        System.out.println("   (Counting from 0, of course!)");

        System.out.print("Isn't it nice to get to ");
        System.out.println(tgif);   // Output value will be:  FRIDAY

        System.out.println( tgif + " is the " + tgif.ordinal() 
                + "-th day of the week.");
    }

}