Create an abstract NewspaperSubscription class with fields for the subscriber name, address, and rate. Include get and set methods for the name field and get methods for the address and subscription rate; the setAddress() method is abstract. Create two subclasses named PhysicalNewspaperSubscription and OnlineNewspaperSubscription. The parameter for the setAddress() method of the PhysicalNewspaperSubscription class must contain at least one digit; otherwise, an error message is displayed and the subscription rate is set to 0. If the address is valid, the subscription rate is assigned $15. The parameter for the setAddress() method of the OnlineNewspaperSubscription class must contain an at sign (@) or an error message is displayed. If the address is valid, the subscription rate is assigned $9. Finally, write an application that declares several objects of both subscription subtypes and displays their data fields
Create an abstract NewspaperSubscription class with fields for the subscriber name, address, and rate. Include get and set methods for the name field and get methods for the address and subscription rate; the setAddress() method is abstract. Create two subclasses named PhysicalNewspaperSubscription and OnlineNewspaperSubscription. The parameter for the setAddress() method of the PhysicalNewspaperSubscription class must contain at least one digit; otherwise, an error message is displayed and the subscription rate is set to 0. If the address is valid, the subscription rate is assigned $15. The parameter for the setAddress() method of the OnlineNewspaperSubscription class must contain an at sign (@) or an error message is displayed. If the address is valid, the subscription rate is assigned $9. Finally, write an application that declares several objects of both subscription subtypes and displays their data fields
Computer Networking: A Top-Down Approach (7th Edition)
7th Edition
ISBN:9780133594140
Author:James Kurose, Keith Ross
Publisher:James Kurose, Keith Ross
Chapter1: Computer Networks And The Internet
Section: Chapter Questions
Problem R1RQ: What is the difference between a host and an end system? List several different types of end...
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Create an abstract NewspaperSubscription class with fields for the subscriber
name, address, and rate. Include get and set methods for the name field and get
methods for the address and subscription rate; the setAddress() method is
abstract. Create two subclasses named PhysicalNewspaperSubscription and
OnlineNewspaperSubscription. The parameter for the setAddress() method of
the PhysicalNewspaperSubscription class must contain at least one digit;
otherwise, an error message is displayed and the subscription rate is set to 0. If
the address is valid, the subscription rate is assigned $15. The parameter for the
setAddress() method of the OnlineNewspaperSubscription class must contain an
at sign (@) or an error message is displayed. If the address is valid, the
subscription rate is assigned $9. Finally, write an application that declares
several objects of both subscription subtypes and displays their data fields
Transcribed Image Text:1. Create an abstract NewspaperSubscription class with fields for the subscriber
name, address, and rate. Include get and set methods for the name field and get
methods for the address and subscription rate; the setAddress() method is
abstract. Create two subclasses named PhysicalNewspaperSubscription and
OnlineNewspaperSubscription. The parameter for the setAddress() method of
the PhysicalNewspaperSubscription class must contain at least one digit;
otherwise, an error message is displayed and the subscription rate is set to 0. If
the address is valid, the subscription rate is assigned $15. The parameter for the
setAddress() method of the OnlineNewspaperSubscription class must contain an
at sign (@) or an error message is displayed. If the address is valid, the
subscription rate is assigned $9. Finally, write an application that declares
several objects of both subscription subtypes and displays their data fields. Save
the files as NewspaperSubscription.java, PhysicalNewspaperSubscription.java,
OnlineNewspaperSubscription.java and DemoSubscriptions.java.
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