Big Java, Binder Ready Version: Early Objects
6th Edition
ISBN: 9781119056447
Author: Cay S. Horstmann
Publisher: WILEY
expand_more
expand_more
format_list_bulleted
Concept explainers
Videos
Textbook Question
Chapter 7, Problem 11PP
A 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 or 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.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
Define a static void method, which receives as an parameter an array of salaries (of type double) and increases them as follows
• salaries <$ 800 - by 10%
• 800 <= salaries <= $1500 - by 5%
• salaries over $1,500 - by 3%
In the test function, define an initialized array of salaries and display it. Call the written method and display the array again.
) 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.
Define a class Car as follows:class Car { public String make; public String model; public int mpg;// Miles per gallon}a) Implement a comparator called CompareCarsByMakeThenModel that can be passed as an argument to the quicksort method from the lecture notes. CompareCarsByMakeThenModel should return a value that will cause quicksort to sort an array of cars in ascending order (from smallest to largest) by make and, when two cars have the same make, in ascending order by model.b) Implement a comparator called CompareCarsByDescendingMPG that can be passed as an argument to the quicksort method from the lecture notes. CompareCarsByDescendingMPG should return a value that will cause quicksort to sort an array of cars in descending order (from largest to smallest) by mpg.c) Implement a comparator called CompareCarsByMakeThenDescendingMPG that can be passed as an argument to the quicksort method from the lecture notes.…
Chapter 7 Solutions
Big Java, Binder Ready Version: Early Objects
Ch. 7.1 -
Declare an array of integers containing the first...Ch. 7.1 -
Assume the array primes has been initialized as...Ch. 7.1 -
Assume the array primes has been initialized as...Ch. 7.1 - Prob. 4SCCh. 7.1 - Prob. 5SCCh. 7.1 -
Declare an array containing two strings, "Yes",...Ch. 7.1 -
Can you produce the output on page 308 without...Ch. 7.1 - Prob. 8SCCh. 7.2 - Prob. 9SCCh. 7.2 - Prob. 10SC
Ch. 7.2 - Prob. 11SCCh. 7.2 - Prob. 12SCCh. 7.3 - Prob. 13SCCh. 7.3 - Prob. 14SCCh. 7.3 - Prob. 15SCCh. 7.3 - Prob. 16SCCh. 7.3 - Prob. 17SCCh. 7.3 - Prob. 18SCCh. 7.3 - Prob. 19SCCh. 7.4 - Prob. 20SCCh. 7.4 - Prob. 21SCCh. 7.4 - Prob. 22SCCh. 7.4 - Prob. 23SCCh. 7.4 - Prob. 24SCCh. 7.5 - Prob. 25SCCh. 7.5 - Prob. 26SCCh. 7.5 - Prob. 27SCCh. 7.5 - Prob. 28SCCh. 7.5 - Prob. 29SCCh. 7.6 - Prob. 30SCCh. 7.6 - Prob. 31SCCh. 7.6 - Prob. 32SCCh. 7.6 - Prob. 33SCCh. 7.6 - Prob. 34SCCh. 7.7 - Declare an array list of integers called primes...Ch. 7.7 - Prob. 36SCCh. 7.7 - Prob. 37SCCh. 7.7 - Prob. 38SCCh. 7.7 - Prob. 39SCCh. 7.7 - Prob. 40SCCh. 7.7 - Prob. 41SCCh. 7.8 - Prob. 42SCCh. 7.8 - Prob. 43SCCh. 7.8 - Prob. 44SCCh. 7 - Prob. 1RECh. 7 - Prob. 2RECh. 7 - Write a program that contains a bounds error. Run...Ch. 7 - Write a loop that reads ten numbers and a second...Ch. 7 - Prob. 5RECh. 7 - Consider the following array:
int[] a = { 1, 2, 3,...Ch. 7 - Consider the following array:
int[] a = { 1, 2, 3,...Ch. 7 - Prob. 8RECh. 7 - Write Java code for a loop that simultaneously...Ch. 7 - What is wrong with each of the following code...Ch. 7 - Write enhanced for loops for the following...Ch. 7 - Rewrite the following loops without using the...Ch. 7 - Rewrite the following loops using the enhanced for...Ch. 7 - What is wrong with each of the following code...Ch. 7 - For the operations on partially filled arrays...Ch. 7 - Trace the flow of the loop in Section 7.3.4 with...Ch. 7 - Prob. 17RECh. 7 - Prob. 18RECh. 7 - Trace the algorithm for removing an element...Ch. 7 - Give pseudocode for an algorithm that rotates the...Ch. 7 - Prob. 21RECh. 7 - Suppose values is a sorted array of integers. Give...Ch. 7 - A run is a sequence of adjacent repeated values....Ch. 7 - What is wrong with the following method that aims...Ch. 7 - You are given two arrays denoting x- and...Ch. 7 - Solve the quiz score problem described in Section...Ch. 7 - Prob. 27RECh. 7 - Develop an algorithm for finding the most...Ch. 7 - Write Java statements for performing the following...Ch. 7 - Prob. 30RECh. 7 - Section 7.7.7 shows that you must be careful about...Ch. 7 - True or false?
All elements of an array are of the...Ch. 7 - How do you perform the following tasks with array...Ch. 7 - Prob. 34RECh. 7 - Prob. 35RECh. 7 - Prob. 36RECh. 7 - Write a program that initializes an array with ten...Ch. 7 - Modify the LargestInArray.java program in Section...Ch. 7 - Write a method sumWithoutSmallest that computes...Ch. 7 - Add a method removeMin to the Student class of...Ch. 7 - Prob. 5PECh. 7 - Write a method that reverses the sequence of...Ch. 7 - Write a program that produces ten random...Ch. 7 - Write a method that implements the algorithm...Ch. 7 - Prob. 9PECh. 7 - Prob. 10PECh. 7 - Consider the following class:
public class...Ch. 7 - Add a method
public boolean sameValues(Sequence...Ch. 7 - Add a method
public boolean sameValues(Sequence...Ch. 7 - Prob. 14PECh. 7 - Prob. 15PECh. 7 - Add a method to the Table class below that...Ch. 7 - Given the Table class of Exercise E7.16, add a...Ch. 7 - Prob. 18PECh. 7 - Prob. 19PECh. 7 - Prob. 20PECh. 7 - Improve the program of Exercise E7.17 by adding...Ch. 7 - Consider the following class:
public class...Ch. 7 - Prob. 23PECh. 7 - Prob. 24PECh. 7 - Prob. 1PPCh. 7 - Prob. 2PPCh. 7 - Prob. 3PPCh. 7 - Prob. 4PPCh. 7 - Prob. 5PPCh. 7 - Prob. 6PPCh. 7 - Prob. 7PPCh. 7 - Prob. 8PPCh. 7 - Prob. 9PPCh. 7 - Prob. 10PPCh. 7 - A pet shop wants to give a discount to its clients...Ch. 7 - Prob. 12PPCh. 7 - Prob. 13PPCh. 7 - Prob. 14PPCh. 7 - Prob. 15PPCh. 7 - Prob. 16PPCh. 7 - Prob. 17PPCh. 7 - Prob. 18PPCh. 7 - Prob. 19PPCh. 7 - Prob. 20PPCh. 7 - Prob. 21PPCh. 7 - Prob. 22PPCh. 7 - Prob. 23PPCh. 7 - Prob. 24PPCh. 7 - Prob. 25PP
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, computer-science and related others by exploring similar questions and additional content below.Similar questions
- We have two classes; these classes are "Car" and "Price".The "car" class is a class that keeps the id and price of the car.If the "Price" class is, there will be get / set methods for the segment of the fee (For example Y segment Z segment), the number of cars, and the "Car" class list.In the "Price" class, there should be a print method to add / remove cars to the list and find the ids of Vehicles whose segments are equal to X.The segments are as follows. 0$ -15999$ -> Y Segment16000$-24999$ -> Z Segment25000$-50000$ -> T Segment It is necessary to use "Single Linked List".The program should be written in JAVA.arrow_forwardComplete the Course class by implementing the printRoster() method, which outputs a list of all students enrolled in a course and also the total number of students in the course. Given classes: Class Course represents a course, which contains an ArrayList of Student objects as a course roster. (Type your code in here) Class Student represents a classroom student, which has three fields: first name, last name, and GPA. (Hint: toString() returns a String representation of the Student object.) Ex: If the following students and their GPA values are added to a course: Henry Cabot with 3.5 GPABrenda Stern with 2.0 GPAJane Flynn with 3.9 GPALynda Robison with 3.2 GPA then the program output is: Henry Cabot (GPA: 3.5) Brenda Stern (GPA: 2.0) Jane Flynn (GPA: 3.9) Lynda Robison (GPA: 3.2) Students: 4 course.java import java.util.ArrayList; // Class representing a studentpublic class Course { private ArrayList<Student> roster; // Collection of Student objects public Course() {…arrow_forward1. write a static method that receive as parameter an array of type student and print the names of all students excepted to graduate. The student is expected to graduate if he/she in year 4 and GPA >2. 2. Write a java program that: a. Asks the user to enter the number of the Student, then the data of each Student and store then inside an array of type Student. b. Ask the user to read a value d of type double then displays the name of all the Student who have GPA greater than the value d. c. Call the above method and print the name of student who excepted to graduate.arrow_forward
- A supermarket wants to reward its best customer of each day, showing the customer’s name on a screen in the supermarket. For that purpose, the store keeps an ArrayList.Create a class customer having id, name, gender, and bill provide appropriate getters/setters and constructors also provide toString method.In the Store class, make an ArrayList of customers, store name, and address implement methods public void addSale(Customer c) that will add customers to the arraylist.public void RemoveCustomer(int id);public void UpdateCustomerRecord(int Id);public displayAll();public String nameOfBestCustomer() to record the sale and return the name of the customer with the largest sale. public ArrayList nameOfBestCustomers(int topN) so that it displays the top customers, that is, the topN customers with the largest sales, where topN is a value that the user of the program supplies. Write a program that prompts following menu and ============================================…arrow_forwardIn java A supermarket wants to reward its best customer of each day, showing the customer’s name on a screen in the supermarket. For that purpose, the store keeps an ArrayList.Create a class customer having id, name, gender, and bill provide appropriate getters/setters and constructors also provide toString method.In the Store class, make an ArrayList of customers, store name, and address implement methods public void addSale(Customer c) that will add customers to the arraylist.public void RemoveCustomer(int id);public void UpdateCustomerRecord(int Id);public displayAll();public String nameOfBestCustomer() to record the sale and return the name of the customer with the largest sale. public ArrayList nameOfBestCustomers(int topN) so that it displays the top customers, that is, the topN customers with the largest sales, where topN is a value that the user of the program supplies. Write a program that prompts following menu and ============================================…arrow_forwardCODe full java. In this assignment, you will implement a class called ArrayAndArrayList. This class includessome interesting methods for working with Arrays and ArrayLists.For example, the ArrayAndArrayList class has a “findMax” method which finds and returns themax number in a given array. For a defined array: int[] array = {1, 3, 5, 7, 9}, callingfindMax(array) will return 9.There are 4 methods that need to be implemented in the ArrayAndArrayList class:● howMany(int[] array, int element) - Counts the number of occurrences of the givenelement in the given array.● findMax(int[] array) - Finds the max number in the given array.● maxArray(int[] array) - Keeps track of every occurrence of the max number in the givenarray.● swapZero(int[] array) - Puts all of the zeros in the given array, at the end of the givenarray.Each method has been defined for you, but without the code. See the javadoc for each methodfor instructions on what the method is supposed to do and how to write the code. It…arrow_forward
- public class PokerAnalysis implements PokerAnalyzer { privateList<Card>cards; privateint[]rankCounts; privateint[]suitCounts; /** * The constructor has been partially implemented for you. cards is the * ArrayList where you'll be adding all the cards you're given. In addition, * there are two arrays. You don't necessarily need to use them, but using them * will be extremely helpful. * * The rankCounts array is of the same length as the number of Ranks. At * position i of the array, keep a count of the number of cards whose * rank.ordinal() equals i. Repeat the same with Suits for suitCounts. For * example, if your Cards are (Clubs 4, Clubs 10, Spades 2), your suitCounts * array would be {2, 0, 0, 1}. * * @param cards * the list of cards to be added */ publicPokerAnalysis(List<Card>cards){ this.cards=newArrayList<Card>(); this.rankCounts=newint[Rank.values().length]; this.suitCounts=newint[Suit.values().length];…arrow_forwardA) Consider the generic print() method, write a method that takes an array of E, where E must be Comparable or extend a type that is Comparable, and returns a reference to the greatest object in the array. In this case, the greatest value is one for which compareTo() would return 0 or more for any other object in the array. If there is more than one possible largest value (these would have to be equal to each other but greater than any other objects in the array), it does not matter which one you choose. B) Write a generic Java queue class (a plain queue, not a priority queue). Call it GenericQueue, because the JDK already has an interface called Queue. The class must be able to create a queue of objects of any reference type. Consider the GenericStack class shown in the lecture notes for some hints. Like the Stack, the GenericQueue should use an underlying ArrayList<E>. Write these methods and any others you find useful: enqueue() adds an E to the queue peek() returns a…arrow_forwardConsider the IntArrayBag collection class that we discussed in class, Draw the data array after executing the following code and show the values that are stored in each cell of the array. Show the array four times at the points labelled A, B, C, and D IntArrayBag bag1 = new IntArrayBag(5); bag1.add(10); bag1.add(5); bag1.add(20); bag1.add(13); //Point A bag1.remove(5); //Point B bag1.add(8); bag1.remove(10); //Point C bag1.add(30); //Point D Exercise 4: search methodarrow_forward
- Write a method for the farmer class that allows a farmer object to pet all cows on the farm. Do not use arrays.arrow_forwardDesign a generic method 'sum' that accepts an array of any type such as int, double or float and this method will return the sum of all elements in the array. Create a test class and call 'sum twice by passing arrays of different types.arrow_forwardCreate a class called Employee with threeattributes: Name, Salary and Id. Make constructors, getters, setters, tostring, displayand compareTo methods. Write a method qsort(e) that will accept an array ofEmployees and sort the results by ID. Write a method bsearch(e, id) that will accept asorted array of Employees and use a binary searchalgorithm to find a specific employee by Id.In your test driver create an array with 10employees. Be sure to populate that data sothat the ids are in random order. Display the array, call qsort then display it again andcall the bsearch with a valid id and an invalid id.arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Database System ConceptsComputer ScienceISBN:9780078022159Author:Abraham Silberschatz Professor, Henry F. Korth, S. SudarshanPublisher:McGraw-Hill Education
Starting Out with Python (4th Edition)Computer ScienceISBN:9780134444321Author:Tony GaddisPublisher:PEARSON
Digital Fundamentals (11th Edition)Computer ScienceISBN:9780132737968Author:Thomas L. FloydPublisher:PEARSON
C How to Program (8th Edition)Computer ScienceISBN:9780133976892Author:Paul J. Deitel, Harvey DeitelPublisher:PEARSON
Database Systems: Design, Implementation, & Manag...Computer ScienceISBN:9781337627900Author:Carlos Coronel, Steven MorrisPublisher:Cengage Learning
Programmable Logic ControllersComputer ScienceISBN:9780073373843Author:Frank D. PetruzellaPublisher:McGraw-Hill Education
Database System Concepts
Computer Science
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:McGraw-Hill Education
Starting Out with Python (4th Edition)
Computer Science
ISBN:9780134444321
Author:Tony Gaddis
Publisher:PEARSON
Digital Fundamentals (11th Edition)
Computer Science
ISBN:9780132737968
Author:Thomas L. Floyd
Publisher:PEARSON
C How to Program (8th Edition)
Computer Science
ISBN:9780133976892
Author:Paul J. Deitel, Harvey Deitel
Publisher:PEARSON
Database Systems: Design, Implementation, & Manag...
Computer Science
ISBN:9781337627900
Author:Carlos Coronel, Steven Morris
Publisher:Cengage Learning
Programmable Logic Controllers
Computer Science
ISBN:9780073373843
Author:Frank D. Petruzella
Publisher:McGraw-Hill Education
9.1: What is an Array? - Processing Tutorial; Author: The Coding Train;https://www.youtube.com/watch?v=NptnmWvkbTw;License: Standard Youtube License