/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */

package retailpricecalc;

/**
     Month Class
 */

class Month
{
    private int monthNumber; // January = 1, ... , December = 12

    public Month()
    {
    monthNumber = 1; // January
    }

    public Month(int num)
    {
    if((num < 1)||(num>12))
        monthNumber = 1; // Jan
    else
        monthNumber = num;
    }

    public Month(String month)
    {
    String lowerMonth = month.toLowerCase();
    if(lowerMonth.equals("january")) monthNumber = 1;
    if(lowerMonth.equals("february")) monthNumber = 2;
    if(lowerMonth.equals("march")) monthNumber = 3;
    if(lowerMonth.equals("april")) monthNumber = 4;
    if(lowerMonth.equals("may")) monthNumber = 5;
    if(lowerMonth.equals("june")) monthNumber = 6;
    if(lowerMonth.equals("july")) monthNumber = 7;
    if(lowerMonth.equals("august")) monthNumber = 8;
    if(lowerMonth.equals("september")) monthNumber = 9;
    if(lowerMonth.equals("october")) monthNumber = 10;
    if(lowerMonth.equals("november")) monthNumber = 11;
    if(lowerMonth.equals("december")) monthNumber = 12;
    }

    public void setMonthNumber(int num)
    {
    if((num < 1)||(num>12))
        monthNumber = 1; // Jan
    else
        monthNumber = num;
    }

    public int getMonthNumber()
    {
    return monthNumber;
    }

    public String getMonthName()
    {
    switch(monthNumber) {
        case 1: return "January";
        case 2: return "February";
        case 3: return "March";
        case 4: return "April";
        case 5: return "May";
        case 6: return "June";
        case 7: return "July";
        case 8: return "August";
        case 9: return "September";
        case 10: return "October";
        case 11: return "November";
        case 12: return "December";
    }
    return "January"; // Default, incase nothing matches in the switch (which should never happen)
    }

    @Override
    public String toString()
    {
    return getMonthName();
    }

    public Boolean equals(Month obj)
    {
    if(this.getMonthNumber()==obj.getMonthNumber())
        return true;
    else
        return false;
    }

    public Boolean greaterThan(Month obj)
    {
    if(this.getMonthNumber() > obj.getMonthNumber())
        return true;
    else
        return false;
    }

    public Boolean lessThan(Month obj)
    {
    if(this.getMonthNumber() < obj.getMonthNumber())
        return true;
    else
        return false;
    }
}
/**
     Month Class Demo Program
 */

class MonthDemo
{
        public static void demo1()
        {
                // Use the default constructor.
                Month m = new Month();
                System.out.println("Month " + m.getMonthNumber() +
                                   " is " + m);
                // Set the month number to the values 0 through 12
                // (0 is invalid), and display the resulting month name.
                for (int i = 0; i <= 12; i++)
                {
                        m.setMonthNumber(i);
                        System.out.println("Month " + m.getMonthNumber() +
                                   " is " + m);
                }
        }

        public static void demo2()
        {
                // Use the 2nd constructor to create two objects.
                Month m1 = new Month(10);
                Month m2 = new Month(5);
                System.out.println("Month " + m1.getMonthNumber() +
                                   " is " + m1);
                System.out.println("Month " + m2.getMonthNumber() +
                                   " is " + m2);

                // Test for equality.
                if (m1.equals(m2))
                        System.out.println(m1 + " and " + m2 + " are equal.");
                else
                        System.out.println(m1 + " and " + m2 + " are NOT equal.");

                // Is m1 greater than m2?
                if (m1.greaterThan(m2))
                        System.out.println(m1 + " is greater than " + m2);
                else
                        System.out.println(m1 + " is NOT greater than " + m2);

                // Is m1 less than m2?
                if (m1.lessThan(m2))
                        System.out.println(m1 + " is less than " + m2);
                else
                        System.out.println(m1 + " is NOT less than " + m2);
        }

        public static void demo3()
        {
                // Use the 3rd constructor to create three objects.
                Month m1 = new Month("March");
                Month m2 = new Month("december");
                Month m3 = new Month("Bad Month");
                System.out.println("Month " + m1.getMonthNumber() +
                                   " is " + m1);
                System.out.println("Month " + m2.getMonthNumber() +
                                   " is " + m2);
                System.out.println("Month " + m3.getMonthNumber() +
                                   " is " + m3);
        }

        public static void main(String[] args) {
            System.out.println("DEMO 1: setMonthNumber test");
            demo1();
            System.out.println();
            System.out.println("DEMO 2: Constructors and comparisons");
            demo2();
            System.out.println();
            System.out.println("DEMO 3: Construction from month names");
            demo3();
        }
}