Chapter 13 Answers to Exercises

1. Identify three objects that might belong to each of the following classes: a. Automobile b. NovelAuthor c. CollegeCourse

The students will have a variety of answers for these questions. Some examples might be: a. myRedChevroletCamaro, theBlackfordMustangWithTheDentThatBobDrives, thePorschee911ThatDonaldTrumpOwns b. Terry Brooks, Steven King, Ray Bradbury c. English Composition, Calculus, Physics

2. Identify three different classes that might contain each of these objects: a. Wolfgang Amadeus Mozart b. My pet cat named Socks c. Apartment 14 at 101 Main Street

The answers to this question will also vary. Some examples are: a. musicians, composers, baroque music performer b. animals, domestic pets, felines d. building, housing, locations

3. Design a class named CustomerRecord that holds a customer number, name, and address. Include methods to set the values for each data field and print the values for each data field. Create the class diagram and write the pseudocode that defines the class.

[pic]

class CustomerRecord private num CustomerNumber private char Name private char Address

public setCustomerNumber (num Number) CustomerNumber = Number return public setName (char newName) Name=newName return public setAddress (char newAddress) Address=newAddress return 4. Design a class named House that holds the street address, price, number of bedrooms, and number of baths in a House. Include methods to set the values for each data field. In the set methods, do not allow the price, bedrooms, or baths to be negative. Include a method that displays all the values for a House. Create the class diagram and write the pseudocode that defines the class.

[pic]

class House private char Address private num Price private num Bedrooms private num Baths

public SetAddress(char newAddress) Address=newAddress return public SetPrice(num newPrice) if newPrice>0 then Price=newPrice endif return public SetBedrooms(num newRooms) if newRooms > 0 then Bedrooms=newRooms endif return public SetBathrooms(num newBaths) if newBaths > 0 then Baths=newBaths endif return public print() print Address, Price, Bedrooms, Baths return 5. Design a class named Loan that holds an account number, name of account holder, amount borrowed, term, and interest rate. Include methods to set values for each data field. In the set methods, do not allow the amount borrowed to be negative or over $100,000, the term to be over 30 years, or the interest rate to be over 17%. Also include a method that prints all the loan information. Create the class diagram and write the pseudocode that defines the class.

[pic]

class Loan private num AcctNumber private char Name private num Amount private num Term private num Rate

public setAccoutNumber(num newNumber) AcctNumber = newNumber return public setName(char newName) Name = newName return public setAmount(num newAmount) if newAmount >= 0 and newAmount