In Python: Design a class named PhoneCall with four fields: two strings that hold the 10-digit phone numbers that originated and received the call two numeric fields that hold the length of the call in minutes and the cost of the call. Include a constructor that sets the phone numbers to Xs set the numeric fields to 0. Include set methods for the origin phone number the receiving phone number call length fields Include get methods for the origin phone number the receiving phone number call length call cost When the call length is set, calculate the cost of the call at three cents per minute for the first 10 minutes, and two cents per subsequent minute. Create the class diagram and write the pseudocode or flowchart that defines the class. Design an application that Declares three PhoneCalls. Set the length of one PhoneCall to 10 minutes, another to 11 minutes, and allow the third object to use the default value supplied by the constructor. Display the origin phone number, receiving phone number, length, and cost of each PhoneCall Create a child class named InternationalPhoneCall that Inherits from PhoneCall. Overrides the parent class method that sets the call length to calculate the cost of the call at 40 cents per minute.

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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In Python:
Design a class named PhoneCall with four fields:
- two strings that hold the 10-digit phone numbers that originated and received the call
- two numeric fields that hold the length of the call in minutes and the cost of the call.
Include a constructor that
- sets the phone numbers to Xs
- set the numeric fields to 0.
Include set methods for
- the origin phone number
- the receiving phone number
- call length fields
Include get methods for
- the origin phone number
- the receiving phone number
- call length
- call cost
When the call length is set, calculate the cost of the call at three cents per minute for the first 10 minutes, and two cents per subsequent minute.
Create the class diagram and write the pseudocode or flowchart that defines the class.
Design an application that
- Declares three PhoneCalls.
- Set the length of one PhoneCall to 10 minutes, another to 11 minutes, and allow the third object to use the default value supplied by the constructor.
- Display the origin phone number, receiving phone number, length, and cost of each PhoneCall
Create a child class named InternationalPhoneCall that
- Inherits from PhoneCall.
- Overrides the parent class method that sets the call length to calculate the cost of the call at 40 cents per minute.

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