A hotel manager is looking for a Java programmer who can develop a reservation system that shall maintain information about the hotel guests and can manage the reservation of hotel rooms.

To solve this problem you are required to do the following:

1. Create a java class reservation that has data members : guestName, passportNo, CheckInDay, CheckInMonth, , CheckOutDay, CheckOutMonth, and pricePerNight. (0.5 Mark)

2. Create a method setAll(), that shall fill the class data members. (0.5 Mark)

3. Create a method calculateNights() , this method shall return the number of nights that the guest stayed in the hotel. Consider that all the year months has 30 days. (3 Marks)

4. Create a method invoice().This method shall return the room total price . The total price includes the total cost of staying in the hotel for number of nights in addition to 20% municipality tax. (2 Marks)

5. Create a method printInvoice() , this method shall return the following : (2 Marks) - Guest name. - Passport number. - Check-in date - Check-out date. - Number of nights. - Total cost before and after tax.