• Creating an abstract class.
• Creating derived classes
• Creating a virtual method
• Overriding class methods
• Creating and implementing an interface
• Instantiating and using derived class objects

3.Create a base class to hold information about sporting teams on cam-pus. If you are using Visual Studio to develop your solution, use the class library template. Design the base class so that it is not possible to instan-tiate the class. Include characteristics you would find with all sports, such as primary coachs name and the name of the sport. Define prop-erties, a ToString() method, and a minimum of one virtual method that can be redefined for specific sports. The ToString() method should return the name of the sport and coach. Since no class is required to test your base class, be sure to build the solution to ensure that no syntax errors exist.

4.Select two types of sporting teams and define subclasses for them. If you are using Visual Studio to develop your solution, use the class library template. These classes should inherit from a base team class such as that created in Exercise 3. Include unique characteristics about the sport. For example, for a sporting team such as a tennis team, the field location and/or the person to contact to restring rackets may be of inter-est. Be sure to implement any virtual methods included in the base class. Provide ToString() methods in both subclasses that invokes the ToString() method in the base class and adds unique character-istics about the individual team to the return value. Since no class is required to test your subclasses, be sure to build the solution to ensure that no syntax errors exist.

5.Provide a test class to demonstrate that your design of a base team class and individual sporting team subclasses works. If you completed Exercise 4, provide a reference in your project to the DLLs you designed for Exercise 4; otherwise create the classes for this exercise. Your test class can be a console or Windows application. One approach to validate your design would be to instantiate objects of your individual sporting team subclasses when the program launches and then invoke methods and properties to retrieve and display data about the teams. From your test class, be sure to retrieve data from the base class as well as the subclasses.

6.Modify your solution for Exercise 5 so that the source code files for each of the classes you designed are available for edit within the solution project. Enhance the solution by defining an interface for the sporting teams relating to budgeting. Any teams that implement the interface must provide details about how they are budgeted. Modify your test class to verify the interface functions properly.

These exercises ask you create a Team class, then two sport-specific classes that inherit from the Team class. In addition to the requirements of the exercises, I am also requiring the creation of two constructors per class. One constructor that has no parameters, and one constructor that accepts the parameters for all of the properties of the object (base and derived). Chapter 11 provides examples of coding these constructors.