EBK JAVA PROGRAMMING
8th Edition
ISBN: 9781305480537
Author: FARRELL
Publisher: CENGAGE LEARNING - CONSIGNMENT
expand_more
expand_more
format_list_bulleted
Videos
Expert Solution & Answer
Chapter 3, Problem 18RQ
Program Description Answer
Before storing data in the object thisBook memory should be allocated for it explicitly.
Hence, the correct answer is option “A”.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
Q3: You are designing a program for storing information about Computers. There are different
types of computer for different purposes. Create a class Computer which will have attributes:
CPUName=string, CPUClockSpeed_ghz-float, memory_gb3float. Now derive two classes from
the Computer class, PC which will have attributes: operatingSystem3string, model=int,
hasGPU=boolean and second class will be Smartphone which will have attributes:
OSversion=string, battery_mAH=int. Write following functions for each class:
> Constructor/Destructor
> Deep Copy Constructor
Parameterised Constructor
Getter/Setter for dimension and length/radius
Function to write the information to data file in append mode.
Write a main function to create a dynamic array of PC and smartphone.
Also write a function to get the PC with max CPUClockSpeed_ghz.
Note: Write those functions which are asked. Be Precise in your answer.
A constant object must be__________ ; it cannot be modified after it’s created.
Create an object prototype called Gradebook that will pass an array of grades for a student as a parameter.
- Create a boolean in Gradebook madeHonourRoll that will check whether or not the student has made honour roll
- Create a function within Gradebook, that will calculate the average of the grades passed
- Create a function outside of Gradebook, that will check if the grades are over an 80% average. Return madeHonourRoll as true if the student has made over 80% average.
- Create a function outside Gradebook, called toString(), that will output to console whether or not the student has made the honour roll.
Chapter 3 Solutions
EBK JAVA PROGRAMMING
Ch. 3 - Prob. 1RQCh. 3 - Prob. 2RQCh. 3 - Prob. 3RQCh. 3 - Prob. 4RQCh. 3 - Prob. 5RQCh. 3 - Prob. 6RQCh. 3 - Prob. 7RQCh. 3 - Prob. 8RQCh. 3 - Prob. 9RQCh. 3 - Prob. 10RQ
Ch. 3 - Prob. 11RQCh. 3 - Prob. 12RQCh. 3 - Prob. 13RQCh. 3 - Prob. 14RQCh. 3 - Prob. 15RQCh. 3 - Prob. 16RQCh. 3 - Prob. 17RQCh. 3 - Prob. 18RQCh. 3 - Prob. 19RQCh. 3 - Prob. 20RQCh. 3 - Prob. 1PECh. 3 - Prob. 2PECh. 3 - Prob. 3PECh. 3 - Prob. 4PECh. 3 - Prob. 5PECh. 3 - Prob. 6PECh. 3 - Prob. 7PECh. 3 - Prob. 8PECh. 3 - Prob. 9PECh. 3 - Prob. 10PECh. 3 - Prob. 11PECh. 3 - Prob. 12PECh. 3 - Prob. 13PECh. 3 - Prob. 1GZCh. 3 - Prob. 2GZCh. 3 - Prob. 1CP
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
- Introduction In this project, you will complete a C++ class by writing a copy constructor, destructor, and assignment operator. Furthermore, you will write a tester class and a test program and use Valgrind to check that your program is free of memory leaks. Finally, you will submit your project files on GL. If you have submitted programs on GL using shared directories (instead of the submit command), then the submission steps should be familiar. In this project we develop an application which holds the information about a digital art piece. There are two classes in this project. • The Random class generates data. The implementation of this class is provided. It generates random int numbers for colors. To create an object of this class we need to specify min and max values for the constructor. The colors fall between 30 and 37 inclusively. The Art class generates random colors and stores the color values. You implement the Art class. An object of the Art class is a digital masterpiece.…arrow_forwardAn n-sided regular polygon’s sides all have the same length and all of its angles have the same degree (i.e., the polygon is both equilateral and equiangular). Design a class named RegularPolygon thatcontains:■ A private int data field named n that defines the number of sides in the polygon.■ A private float data field named side that stores the length of the side.■ A private float data field named x that defines the x-coordinate of the center of the polygon with default value 0. ■ A private float data field named y that defines the y-coordinate of the center of the polygon with default value 0.■ A constructor that creates a regular polygon with the specified n (default 3),side (default 1), x (default 0), and y (default 0).■ The accessor and mutator methods for all data fields.■ The method getPerimeter() that returns the perimeter of the polygon.■ The method getArea() that returns the area of the polygon. The formula for computing the area of a regular polygon is Area = (n * s2) / (4 *…arrow_forwardRectangle Object Monitoring Create a Rectangle class that can compute the total area of all the created rectangle objects using static fields (variables). Remember that a Rectangle has two attributes: Length and Width. Implement the class by creating a computer program that will ask the user about three rectangle dimensions. The program should be able to display the total area of the three rectangle objects. For this exercise, you are required to apply all OOP concepts that you learned in class. Sample output: Enter Length R1: 1 Enter Width R1: 1 Enter Length R2: 2 Enter Width R2: 2 Enter Length R3: 3 Enter Width R3: 3 The total area of the rectangles is 14.00 Note: All characters in boldface are user inputs.arrow_forward
- When you want to work with an object, you use a variable that holds a special value known as a(n) __________ to link the variable to the object. a. union b. reference c. object linker d. data couplingarrow_forwardYou are required to build a mini FunTime application for the kids to play with their electronic toys in a virtual world. Follow the given steps Build a class Toy having the following data members Name(String) Color (String) Type (String) Price (float) batteryHealth (int) Provide constructor with arguments for name, color, type, and price. Initialize batteryHealth to 5 (which means full). Provide getter for each of these but no setters.Provide a function charge(String time). This function would increase the batteryHealth of the toy according to following rules Time Increase in battery health 15 mins 20% charging (Increase health by 1) 30 mins 40% 45 mins 60% 1 hour 80% 1 hour 15 mins 100% If the toy is already fully charged, then no more charging should be done and appropriate message to be displayed. The charge function returns the new health of the battery of toy object. Provide another function play() that reduces the batteryHealth of the toy…arrow_forwarddesign a Club class and use it to create an application that simulates asoccer league tournament. You are not limited to the features included in these instructionsDesign the Club class, to be used in your application, containing: A private data member code of type string that holds the three letters club’s abbreviation(ex, FCB, LIV, RAM ...) A private data member name of type string that holds the club’s name (ex, FC Barcelona,Liverpool, Real Madrid …) A private data member round of type integer that holds the number of rounds the club hasplayed so far in the current league. A private data member wins of type integer that holds the number of times the club haswon in the current league. A private data member draws of type integer that holds the number of times the club hasbeen drawn in the current league. A private data member losses of type integer that holds the number of times the club haslost in the current league. A private data member goals of type integer that holds the…arrow_forward
- Object files: Instead of displaying the student data on the screen, change the program such that data in the array can be saved into an object file. Hint: Make the Student class serializable. 1. Add your own name as a new student into the array before having it saved into the object file. How is this possible. how would i be able to add my own name as a new student in my java source code?!?!?! here is a image of the source output: You have to answer only code and make it fast don;t waste time .arrow_forwardYou are required to build a mini FunTime application for the kids to playwith their electronic toys in a virtual world. Follow the given steps Build a class Toy having the following data members Name(String) Color (String) Type (String) Price (float) batteryHealth (int) Provide constructor with arguments for name, color, type, and price. Initialize batteryHealth to 5 (which means full). Provide getter for each of these but no setters.Provide a function charge(String time). This function would increase the batteryHealth of the toy according to following rules Time Increase in battery health 15 mins 20% charging (Increase health by 1) 30 mins 40% 45 mins 60% 1 hour 80% 1 hour 15 mins 100% If the toy is already fully charged, then no more charging should be done and appropriate message to be displayed. The charge function returns the new health of the battery of toy object. Provide another function play() that reduces the batteryHealth of the…arrow_forwardYou need 5 java classes and these include Netflix Class (Parent class of Movie and TVShow class) Movie Class TVShow Class Test/TestDriver Class Database Class Please read the questions carefully. TestDriver is given for the other image.arrow_forward
- Need a java code Create a class called SingleItem This class represents a bag that can hold any single type of object (decided at bag-creation time), and only one item of that type at a time. You may have a zero-parameter constructor if you want one, but you must have the following three features: Add a method called (addItem()) which returns whether or not it was successfully added Add a method which removes an item from the bag and returns it (deleteAnItem()), return null if there is no item Add a method to check if an item is in the bag (hasAnIteminTheBag()) which returns true or falsearrow_forwardclass Student(object): """Represents a student.""" def __init__(self, name, number): """All scores are initially 0.""" self._name = name self._scores = [] for count in range(number): self._scores.append(0) def getName(self): """Returns the student's name.""" return self._name def setScore(self, i, score): """Resets the ith score, counting from 1.""" self._scores[i - 1] = score def getScore(self, i): """Returns the ith score, counting from 1.""" return self._scores[i - 1] def getAverage(self): """Returns the average score.""" return sum(self._scores) / len(self._scores) def getHighScore(self): """Returns the highest score.""" return max(self._scores) def __str__(self): """Returns the string representation of the student.""" return "Name: " + self._name + "\nScores: " + \ " ".join(map(str, self._scores))arrow_forwardquestion in javascript Create an object prototype called Gradebook that will pass an array of grades for a student as a parameter. - Create a boolean in Gradebook madeHonourRoll that will check whether or not the student has made honour roll - Create a function within Gradebook, that will calculate the average of the grades passed - Create a function outside of Gradebook, that will check if the grades are over an 80% average. Return madeHonourRoll as true if the student has made over 80% average. - Create a function outside Gradebook, called toString(), that will output to console whether or not the student has made the honour roll.arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
EBK JAVA PROGRAMMINGComputer ScienceISBN:9781305480537Author:FARRELLPublisher:CENGAGE LEARNING - CONSIGNMENT
EBK JAVA PROGRAMMINGComputer ScienceISBN:9781337671385Author:FARRELLPublisher:CENGAGE LEARNING - CONSIGNMENT
Microsoft Visual C#Computer ScienceISBN:9781337102100Author:Joyce, Farrell.Publisher:Cengage Learning,
EBK JAVA PROGRAMMING
Computer Science
ISBN:9781305480537
Author:FARRELL
Publisher:CENGAGE LEARNING - CONSIGNMENT
EBK JAVA PROGRAMMING
Computer Science
ISBN:9781337671385
Author:FARRELL
Publisher:CENGAGE LEARNING - CONSIGNMENT
Microsoft Visual C#
Computer Science
ISBN:9781337102100
Author:Joyce, Farrell.
Publisher:Cengage Learning,
Memory Management Tutorial in Java | Java Stack vs Heap | Java Training | Edureka; Author: edureka!;https://www.youtube.com/watch?v=fM8yj93X80s;License: Standard YouTube License, CC-BY