Using the NetBeans UML plug in, draw a UML class diagram. Draw an inheritance hierarchy for Online eFax Subscription types. Use Subscription as the superclass. Trial, Basic, and Premium are subclasses of Subscription. All subscriptions have first and last names, email address, and subscription start date. Trial has number of faxes sent attribute. Basic has monthly fee attribute. Premium has monthly fee attribute and number of faxes received. Premium packages are the only subscription that allows incoming efaxes.

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