In order to get everyone accustomed to each other and working with the SVN repository, do the following:

• Commit your name and email address into your group repository.
• Also, commit a short textual presentation of one of your group members.
• The presentation should just be a short description of who the person is, what he/she does, etc.
• Each group member has to be covered.

DeutschTel Inc. sells phone cards for making cheap long distance calls around the world. In this assignment, you will write a (much simplified) Java program to manage their business.

DeutschTel Inc. sells 3 types of phone cards: NATel5 cards, which cost €5 and are good only for calls in Canada and the USA, GlobalTel5 cards, which cost €5 and are good for overseas calls, and GlobalTel15 cards, which cost €15 and are also good for overseas calls.

The per minute rates for each type of card and call zone are as follows:

The initial balance on the cards and the weekly maintenance fee are indicated below:

In order to help the DeutschTel Inc. to manage its work, we have implemented a hierarchy of classes to represent the different types of cards. However the implementation still missing some details, your main task during this tutorial is to fill in the gaps in our provided implementation.

• In your group repository, you'll find your copy of the unfinished project.

• Go through the classes in the given order, you can find 18 small tasks that you have to accomplish:
  • PhoneCard.java
  • NATel5Card.java
  • GlobalTel5Card.java
  • GlobalTel15Card.java
  • TestApplication.java

• Remember to commit working code back into the repository. (Or even nonworking, if you want your team members or us help you with it)

• Convert the CallZone class into an enumeration. Modify other classes' code accordingly.

• Hints:
  • Convert the zone type from integer to a CallZone object.
  • Add a function in the CallZone enumeration type to convert from a string to an enumeration object.