***URGENT

I AM GONNA TYPE IT IN VISUAL STUDIO

c#

COMP-123

LAB ASSIGNMENT #3

Due Date:

Second Class, Week 6,

Marks/Weightage: 30/10%

Purpose:

The purpose of this Lab Assignment is to:

Practice the use of instance data members, constructors, methods in classes and objects

References: Read the courses text book chapter 10 Inheritance and Polymorphism and the lecture notes/ppts. This material provides the necessary information that you need to complete the exercises.

Instructions: Be sure to read the following general instructions carefully:

This lab should be completed individually by all the students. You will have to demonstrate your solution in a scheduled lab session and submitting the project through drop box link on e-Centennial.

You must name your solution according to the following rule:

FirstName-LastName_SectionNumber_COMP123_Labnumber For Example: Joh-Smith_Sec002_COMP123_Lab01

Each exercise should be placed in a separate namespace named firstname-last-name_exercise1, firstname-last-name_exercise2 etc.

Submit your assignment in a zip file that is named according to the following rule:

FirstName-LastName_SectionNumber_COMP123_Labnumber.zip Example: Joh-Smith_Sec002_COMP123_Lab01.zip (if your section is 001..)

Apply the naming conventions for variables, methods, classes, and packages:

variable names start with a lowercase character for the first word and uppercase for every other word classes start with an uppercase character of every word namespaces use only lowercase characters methods start with a uppercase character for the first word and uppercase for every other word

Exercise #1: [15 marks]

Write a C# application that implements the following class(es) as per business requirements:

Let Package (Package.cs) be an abstract base class and TwoDayPackage (TwoDayPackage.cs) and OverNightPackage

(OverNightPackage.cs) are its two derived classes.

The Package class defines following:

Instance data members package id, senders name and senders address.

Implement properties and toString() method.

Instance members to represent the weight of package in grams and rate per gram. Add validations and ensure that these should never be negative

Define an abstract method double CalculatePackageCost().

Implement the properties and toString() method for the above instance variables of class Package.

Lab Assignment #3 _____________Page 1 of 3

Programming 02 COMP-123

The TwoDayPackage ( TwoDayPackage.cs) should include the following:

Instance variable admin charges which is fixed amount, added to the cost of mailing the package. It can not be negative.

Define constructor which initializes all the instance variables by using the base class constructor.

Define properties and override toString() method from the base class.

Override/Implements method - double CalculatePackageCost(). () which calculates total cost of mailing the package (use formula: weight * rate per gram + admin charges)

The OverNightPackage(OverNightPackage.cs) should include the following:

Instance variable express charges which is a fixed amount, added to the cost of mailing the package. It cannot be negative.

And rate per gram is 10 cents more than the standard rate.

Define constructor which initializes all the instance variables by using the base class constructor. Define properties and override toString() method from the base class.

Override/Implements method - double CalculatePackageCost(). () which calculates total cost of mailing the package, but here you also need to take into account extra charge which is 10 cents more than standard rate per gram.

Define properties and toString() method

Create a test class PackageTest (PackageTest.cs) which tests above class by at least creating two objects of the TwoDayPackage and OverNightPackage class. And you are required to process them in standard way as well as polymorphically i.e assigning their references to Package base class and then processing them.

Exercise #2: [15 marks]

Write a C# application that implements the following class(es) as per business requirements mentioned below:

Lab Assignment #3 _____________Page 2 of 3

Programming 02 COMP-123

In the RealEstateSalesperson class, implement the MakeSale() method to accept an integer dollar value for a house, add the value to the RealEstateperson total value sold, and compute the total commission earned.

In the GirlScout class, implement the MakeSale() method to accept an integer representing the number of boxes of the cookies sold and add it to the total field.

Evaluation:

Functionality

Correct implementation of classes (instance variable declarations,

70%

constructors, properties and methods etc.)

Correct implementation of test classes (declaring and creating objects,

20%

calling their methods, interacting with user, displaying results)

Comments, correct naming of variables, methods, classes, exception

5%

handling etc.

Friendly input/output

5%

Total

100%

Lab Assignment #3 _____________Page 3 of 3

Write a program named SalespersonDemo that instantiates objects using classes named RealEstateSalesperson and GirlScout. Demonstrate that each objedt can use a SalesSpeech) method appropriately. Also, use a MakeSale) methood two or three times with each object and display the final contents of each objects data fields. First, create an abstract class named Salesperson. Fields include first and last names; the Salesperson constructor requires both these values. Include properties for the fields. Include a method that returns a string that holds the Salesperson's full name-the first and last names separated by a space. Then perform the following tasks . Create two child classes of Salesperson: RealEstateSalesperson and GirlScout. The RealEstateSalesperson class contains fields for total value sold in dollars and total commission earned (both of which are initialized to 0), and a commission rate field required by the class constructor. The GirlScout class includes a field to hold the number of boxes of cookies sold which is initialized to O. Include properties for every field. Create an interface named ISellable that contains two methods salesSpeecho and MakeSaleO. In each RealEstateSalesperson and GirlScout class, implement SalesSpeechO to display an appropriate one- or two-sentence sales speech that the objects of the class could use Write a program named SalespersonDemo that instantiates objects using classes named RealEstateSalesperson and GirlScout. Demonstrate that each objedt can use a SalesSpeech) method appropriately. Also, use a MakeSale) methood two or three times with each object and display the final contents of each objects data fields. First, create an abstract class named Salesperson. Fields include first and last names; the Salesperson constructor requires both these values. Include properties for the fields. Include a method that returns a string that holds the Salesperson's full name-the first and last names separated by a space. Then perform the following tasks . Create two child classes of Salesperson: RealEstateSalesperson and GirlScout. The RealEstateSalesperson class contains fields for total value sold in dollars and total commission earned (both of which are initialized to 0), and a commission rate field required by the class constructor. The GirlScout class includes a field to hold the number of boxes of cookies sold which is initialized to O. Include properties for every field. Create an interface named ISellable that contains two methods salesSpeecho and MakeSaleO. In each RealEstateSalesperson and GirlScout class, implement SalesSpeechO to display an appropriate one- or two-sentence sales speech that the objects of the class could use