Question 4 0 out of 10 points Suppose you had two data definition classes, Disease and ViralDisease. ViralDisease extends Disease. Assume in your implementation class, you had created an array of Disease objects. When looping through the array of Disease objects, how would you check to see if the current object was a ViralDisease? Question 3 Given the following class hierarchy and implementation class below, what would be the output on line 18. 1 public abstract class Product ( 2 3 } public abstract String WhatAmI (); 4 public class Book extends Product { public String WhatAmI () { 456 7 8 } 9 10 11 12 ) return "I am a Book"; public class Magazine extends Product { public String WhatAmI () 13) } return " I am a Magazine"; 14 public class Product Implementation ( public static void main(String[] args) { 15 16 17 18 19 } 20 } Product pl == new Book (); Product p2 = new Magazine (); JOptionPane.showMessageDialog(null, pl. WhatAmI ()); D 10 out of 10 points

Question 4 0 out of 10 points Suppose you had two data definition classes, Disease and ViralDisease. ViralDisease extends Disease. Assume in your implementation class, you had created an array of Disease objects. When looping through the array of Disease objects, how would you check to see if the current object was a ViralDisease? Question 3 Given the following class hierarchy and implementation class below, what would be the output on line 18. 1 public abstract class Product ( 2 3 } public abstract String WhatAmI (); 4 public class Book extends Product { public String WhatAmI () { 456 7 8 } 9 10 11 12 ) return "I am a Book"; public class Magazine extends Product { public String WhatAmI () 13) } return " I am a Magazine"; 14 public class Product Implementation ( public static void main(String[] args) { 15 16 17 18 19 } 20 } Product pl == new Book (); Product p2 = new Magazine (); JOptionPane.showMessageDialog(null, pl. WhatAmI ()); D 10 out of 10 points

C++ for Engineers and Scientists

4th Edition

ISBN:9781133187844

Author:Bronson, Gary J.

Publisher:Bronson, Gary J.

Chapter11: Introduction To Classes

Section11.1: Classes

Problem 1E

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A(n) ____________ is one instance or variable of a class.
Chapter 10 defined the class circleType to implement the basic properties of a circle. (Add the function print to this class to output the radius, area, and circumference of a circle.) Now every cylinder has a base and height, where the base is a circle. Design a class cylinderType that can capture the properties of a cylinder and perform the usual operations on the cylinder. Derive this class from the class circleType designed in Chapter 10. Some of the operations that can be performed on a cylinder are as follows: calculate and print the volume, calculate and print the surface area, set the height, set the radius of the base, and set the center of the base. Also, write a program to test various operations on a cylinder.
Consider the definition of the class product Type as given in Exercise 8. Answer the following questions. (1, 2, 3, 5, 7) a. Write the definition of the function set so that instance variables are set according to the paramaters. Instance variables quantitieslnStock, price, and discount must be nonnegative. b. Write the definition of the function print to output the values of the instance variables. c Write the definition of the function setQuantitiesInStock to set the value of the instance variable quantitiesInStock according to the parameter. d. Write the definition of the function updateQuantitiesInStock to update the value of instance variable quantitiesInStock by adding the value of the parameter. e. Write the definition of the function getQuantitiesInStock to return the value of instance variable quantitiesInStock. f. Write the definition of the function setPrice to set the value of the instance variable price according to the parameter. g. Write the definition of the function getPrice to return the value of the instance variable price. h. Write the definition of the function setDiscount to set the value of the instance variable discount according to the parameter. i. Write the definition of the function getDiscount to return the value of the instance variable discount.
Consider the definition of the following class: (1, 2, 3, 5, 7) a. Give the line number containing the constructor that is executed in each of the following declarations. b. Write the definition of the constructor in Line 4 so that the instance variables are initialized to " ", " ", " ", 0, 0.0, and 0.0, respectively. c Write the definition of the constructor in Line 5 so that the string instance variables are initialized to"", and the other instance variables are initialized according to the parameters. Instance variables quantitieslnStock, price, and discount must be nonnegative. d. Write the definition of the constructor in Line 6 so that the instance variables productName and manufacturer are initialized to the empty string, instance variable id is initialized according to the first parameter, and the remaining instance variables are initialized according to the last three parameters. Instance variables quantitieslnStock, price, and discount must be nonnegative. e. Write the definition of the constructor in Line 7 so that the instance variables are initialized according to the parameters. Instance variables quantitieslnStock, price, and discount must be nonnegative.
Assume the definition of class foodType as given in Exercise 6. Answer the following questions? (1, 2, 3, 5, 6) Write the definition of the member function set so that private members are set according to the parameters. The values of the int and double instance variables must be nonnegative. Write the definition of the member function print that prints the values of the data members. Write the definitions of the member functions getName, getcalories, getFat, getSugar, getCarbohydrate, getPotassium to return the values of the instance variable. Write the definition of the default constructor of the class foodType so that the private member variables are initialized to 0, 0. 0, 0, 0. 0, 0. 0, respectively. Write the definition of the constructor with parameters of the class foodType so that the private member variables are initialized according to the parameters. The values of the int and double instance variables must be nonnegative. Write a C + + statement that prints the value of the object fruit 2. Write a C++ statement that declares an object my Fruit of type foodType, and initializes the member variables of myFruit to Apple, 52, 0. 2, 10,13.8, and 148.0, respectively.
Assume the definition of class houseType as given in Exercise 11. Answer the following questions. (1, 2, 3, 5, 7) a. Write the definition of the member function set so that private members are set according to the parameters. b. Write the definition of the member function print that prints the values of the data members. c. Write the definition of the constructor of the class houseType so that the private member variables are initialized to according to the parameters. d. Write a C++ statement that prints the value of the object newHouse. e. Write a C + + statement that declares an object house of type newHouse, and initializes the member variables of house to "Ranch", 3, 2, 2, 2005, 1300, 185000, and 3600.0, respectively. f. Which function members are accessors and which are mutators?
Using classes, design an online address book to keep track of the names, addresses, phone numbers, and dates of birth of family members, close friends, and certain business associates. Your program should be able to handle a maximum of 500 entries. Define a class addressType that can store a street address, city, state, and ZIP code. Use the appropriate functions to print and store the address. Also, use constructors to automatically initialize the member variables. Define a class extPersonType using the class personType (as defined in Example 10-10, Chapter 10), the class dateType (as designed in this chapters Programming Exercise 2), and the class addressType. Add a member variable to this class to classify the person as a family member, friend, or business associate. Also, add a member variable to store the phone number. Add (or override) the functions to print and store the appropriate information. Use constructors to automatically initialize the member variables. Define the class addressBookType using the previously defined classes. An object of the type addressBookType should be able to process a maximum of 500 entries. The program should perform the following operations: Load the data into the address book from a disk. Sort the address book by last name. Search for a person by last name. Print the address, phone number, and date of birth (if it exists) of a given person. Print the names of the people whose birthdays are in a given month. Print the names of all the people between two last names. Depending on the users request, print the names of all family members, friends, or business associates.