Microsoft Visual C#
7th Edition
ISBN: 9781337102100
Author: Joyce, Farrell.
Publisher: Cengage Learning,
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Textbook Question
Chapter 9, Problem 10E
- Write a
program named DemoJobs for Harold’s Home Services. The program should instantiate several Job objects and demonstrate their methods. The Job class contains four data fields—description (for example, "wash windows"), time in hours to complete (for example, 3.5), per-hour rate charged (for example, $25.00), and total fee (hourly rate times hours). Include properties to get and set each field except the total fee—that field will be read-only, and its value is calculated each time either the hourly fee or the number of hours is set. Overload the + operator so that two Jobs can be added. The sum of two Jobs is a new Job containing the descriptions of both original Jobs (joined by and), the sum of the time in hours for the original Jobs, and the average of the hourly rate for the original Jobs. - Harold has realized that his method for computing the fee for combined jobs is not fair. For example, consider the following:
• His fee for painting a house is $100 per hour. If a job takes 10 hours, he earns $1000.
• His fee for dog walking is $10 per hour. If a job takes 1 hour, he earns $10.
• If he combines the two jobs and works a total of 11 hours, he earns only the average rate of $55 per hour, or $605.
Devise an improved, weighted method for calculating Harold’s fees for combined Jobs and include it in the overloaded operator+() method. Write a program named DemoJobs2 that demonstrates all the methods in the class work correctly.
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This has to be done in visual studio, c# windows form application (.net fromework).
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Create an application named JobDemo that declares and uses Job objects. The Job class holds job information for a home repair service. The class has five properties that include a job number, customer name, job description, estimated hours, and price for the job. Create a constructor that requires parameters for all the data except price. Include auto-implemented properties for the job number, customer name, and job description, but not for hours or price; the price field value is calculated as estimated hours times $45.00 whenever the hours value is set. Also create the following for the class: •An Equals() method that determines two Jobs are equal if they have the same job number •A GetHashCode() method that returns the job number •A ToString() method thatreturns a string containing all job information The JobDemo application declares a few Job objects, sets their values, and demonstrates that all the methods work as expected. b.Using the Job class you created in Exercise 3a, write a…
Chapter 9 Solutions
Microsoft Visual C#
Ch. 9 - Assume that you have created a class named...Ch. 9 - Prob. 9RQCh. 9 - Assume that you have created a class named...Ch. 9 - Create an application named SalesTransactionDemo...Ch. 9 - Create an application named CarDemo that declares...Ch. 9 - Create a program named SalesTaxDemo that declares...Ch. 9 - Prob. 8ECh. 9 - Write a program named DemoJobs for Harolds Home...Ch. 9 - a. Write a FractionDemo program that instantiates...Ch. 9 - Prob. 1DE
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