Java: Introduction to Problem Solving and Programming
7th Edition
ISBN: 9780133834604
Author: SAVITCH
Publisher: PEARSON
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Textbook Question
Chapter 9, Problem 10PP
Suppose that you are in change of customer service for a certain business. As phone calls come in, the name of the caller is recorded and eventually a service representative returns the call and handles the request. Write a class ServiceRequests that keeps track of the names of callers. The class should have the following methods:
- addName (name)—adds a name to the list of names. Throws a ServiceBackUpException if there is no free space in the list
- removeName (name)—removes a name from the list Throws a NoServiceRequestException if the name is not in the list.
- getName (i)—returns the ith name in the 1st.
- getNumber—returns the current number of service requests.
Write a program that uses an object of type ServiceRequests to keep track of customers that have called. It should have a loop that, in each iteration, attempts to add a name, remove a name, or print all names. Use an array of size 10 as the list of names.
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????????:
Implement the design of the Pizza class so that the following output is
produced:
[Your code should work for any number of parameters added in the
set_toppings_info method]
# Write your codes here.
print("Pizza Count:", Pizza.pizza_count)
print("=======================")
p1 = Pizza("Chicken")
p1.set_toppings_info(25, 1, 4, 0)
p1.display()
print("------------------------------------")
p2 = Pizza("Olives")
p2.set_toppings_info(15, 1.5, 0, 0)
p2.display()
print("------------------------------------")
p3 = Pizza("Sausage")
p3.set_toppings_info(50, 5, 2, 0)
p3.display()
print("=======================")
print("Pizza Count:", Pizza.pizza_count)
Output:
Pizza Count: 0
=======================
Toppings: Chicken
25 calories
1 g fat
4 g protein
0 g carbs
------------------------------------
Toppings: Olives
15 calories
1.5 g fat
0 g protein
0 g carbs
------------------------------------
Toppings: Sausage
50 calories
5 g fat
2 g protein
0 g carbs
=======================
Pizza…
pet shop wants to give a discount to its clients if they buy one or more pets and at least five other items. The discount is equal to 20 percent of the cost of the other items, but not the pets.Use a class Item to describe an item, with any needed methods and a constructor public Item(double price, boolean isPet, int quantity)An invoice holds a collection of Item objects; use an array list to store them. In the Invoice class, implement methods public void add(Item anItem)public double getDiscount()Write a program that prompts a cashier to enter each price and quantity, and then a Y for a pet or N for another item. Use a price of –1 as a sentinel. In the loop, call the add method; after the loop, call the getDiscount method and display the returned value.
) Modify the BookStore and BookSearchEngine classes explained in the class to include the following additional methods and test them:a) A method returning the book with the lowest price in the library.b) A method searching the library for Books of a given author and returning an ArrayList of such Books. c) A method returning an ArrayList of Books whose price is less than a given number.
Chapter 9 Solutions
Java: Introduction to Problem Solving and Programming
Ch. 9.1 - Prob. 1STQCh. 9.1 - What output would the code in the previous...Ch. 9.1 - Prob. 3STQCh. 9.1 - Prob. 4STQCh. 9.1 - Prob. 5STQCh. 9.1 - Prob. 6STQCh. 9.1 - Prob. 7STQCh. 9.1 - Prob. 8STQCh. 9.1 - In the code given in Self-Test Question 1,...Ch. 9.1 - In the code given in Self-Test Question 1,...
Ch. 9.1 - Prob. 11STQCh. 9.1 - Prob. 12STQCh. 9.1 - Prob. 13STQCh. 9.1 - Prob. 14STQCh. 9.2 - Prob. 15STQCh. 9.2 - Prob. 16STQCh. 9.2 - Prob. 17STQCh. 9.2 - Prob. 18STQCh. 9.2 - Prob. 19STQCh. 9.2 - Prob. 20STQCh. 9.2 - Suppose that, in Self-Test Question 19, we change...Ch. 9.2 - Prob. 22STQCh. 9.2 - Prob. 23STQCh. 9.3 - Prob. 24STQCh. 9.3 - Prob. 25STQCh. 9.3 - Prob. 26STQCh. 9.3 - Prob. 27STQCh. 9.3 - Prob. 28STQCh. 9.3 - Repeat Self-Test Question 27, but change the value...Ch. 9.3 - Prob. 30STQCh. 9.3 - Prob. 31STQCh. 9.3 - Prob. 32STQCh. 9.3 - Consider the following program: a. What output...Ch. 9.3 - Write an accessor method called getPrecision that...Ch. 9.3 - Prob. 35STQCh. 9.4 - Rewrite the class ColorDemo in Listing 9.13 so...Ch. 9.4 - Prob. 37STQCh. 9 - Write a program that allows students to schedule...Ch. 9 - Prob. 2ECh. 9 - Prob. 3ECh. 9 - Prob. 4ECh. 9 - Prob. 5ECh. 9 - Write code that reads a string from the keyboard...Ch. 9 - Create a class Rational that represents a rational...Ch. 9 - Prob. 9ECh. 9 - Suppose that you are going to create an object...Ch. 9 - Revise the class RoomCounter described in the...Ch. 9 - Prob. 12ECh. 9 - Write a class LapTimer that can be used to time...Ch. 9 - Prob. 1PCh. 9 - Prob. 2PCh. 9 - Prob. 3PCh. 9 - Write a program that uses the class calculator in...Ch. 9 - Prob. 3PPCh. 9 - Prob. 7PPCh. 9 - Prob. 9PPCh. 9 - Suppose that you are in change of customer service...Ch. 9 - Write an application that implements a trip-time...
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