Java How To Program (Early Objects)
10th Edition
ISBN: 9780133807943
Author: Deitel, Paul
Publisher: Pearson Education
expand_more
expand_more
format_list_bulleted
Videos
Textbook Question
Chapter 3, Problem 6.1E
(set and get Methods) Explain why a class might provide a set method and a get method for an instance variable.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
(java)
The Painting Subclass
Write class as follows:
The class is named Painting, and it inherits from the Art class.
It has a private String member variable named medium
It has a default constructor that assigns the values "No name" to name, "No artist" to artist, -1 to year, and "No medium" to the medium variable. This default constructor calls the four-argument constructor.
It has a four-argument constructor to assign values to the name, artist, year, and medium variables.
It has a getter and settersfor the medium variable.
It has a toString() method
This class contains no other methods
Make sure to include your name, the name of this class, our course number, and the Activity number in a Javadoc comment at the top.
Make sure to write a Javadoc comment for each of these methods.
(Triangle class) Design a new Triangle class that extends the abstract
Geometricobject class. Draw the UML diagram for the classes Triangle and
Geometricobject then implement the Triangle class. Write a test program
that prompts the user to enter three sides of the triangle, a color, and a Boolean
value to indicate whether the triangle is filed. The program should create a Tri-
angle object with the se sides, and set the color and filled properties using the
input. The program should display the area, perimeter, color, and true or false to
indicate whether it is filled or not.
(Java)
The Sculpture Subclass
Write class as follows:
The class is named Sculpture, and it inherits from the Painting class.
It has a private boolean member variable named humanForm
It has a default constructor that assigns the values "No name" to name, "No artist" to artist, -1 to the year, "No medium" to the medium, and false to the humanForm variable. This default constructor calls the five argument constructor.
It has a five-argument constructor to assign values to the name, artist, year, medium, and humanForm variables.
It has a getter and setter for the humanForm variable.
It has a toString() method.
This class contains no other methods
Make sure to include your name, the name of this class, our course number, and the Activity number in a Javadoc comment at the top.
Make sure to write a Javadoc comment for each of these methods.
Chapter 3 Solutions
Java How To Program (Early Objects)
Ch. 3 - Fill in the blanks in each of the following: Each...Ch. 3 - Fill in the blanks in each of the following:...Ch. 3 - Fill in the blanks in each of the following:...Ch. 3 - Fill in the blanks in each of the following: Each...Ch. 3 - Prob. 1.5SRECh. 3 - Fill in the blanks in each of the following: Java...Ch. 3 - Prob. 1.7SRECh. 3 - Prob. 1.8SRECh. 3 - Prob. 1.9SRECh. 3 - Prob. 1.10SRE
Ch. 3 - Prob. 1.11SRECh. 3 - Prob. 1.12SRECh. 3 - Fill in the blanks in each of the following: A(n)...Ch. 3 - Prob. 1.14SRECh. 3 - Prob. 1.15SRECh. 3 - Prob. 1.16SRECh. 3 - Fill in the blanks in each of the following: Types...Ch. 3 - Prob. 2.1SRECh. 3 - Prob. 2.2SRECh. 3 - State whether each of the following is true or...Ch. 3 - Prob. 2.4SRECh. 3 - Prob. 2.5SRECh. 3 - Prob. 2.6SRECh. 3 - State whether each of the following is true or...Ch. 3 - State whether each of the following is true or...Ch. 3 - Prob. 2.9SRECh. 3 - Prob. 2.10SRECh. 3 - State whether each of the following is true or...Ch. 3 - Prob. 3.1SRECh. 3 - Prob. 4.1SRECh. 3 - (Keyword new) Whats the purpose of keyword new?...Ch. 3 - Prob. 2.1ECh. 3 - (Instance Variables) Explain the purpose of an...Ch. 3 - Prob. 4.1ECh. 3 - (Using a Class without Importing It) Explain how a...Ch. 3 - (set and get Methods) Explain why a class might...Ch. 3 - Prob. 7.1ECh. 3 - (Invoice Class) Create a class called Invoice that...Ch. 3 - (Employee Class) Create a class called Employee...Ch. 3 - Prob. 10.1ECh. 3 - (Target-Heart-Rate Calculator) While exercising,...Ch. 3 - (Computerization of Health Records) A health-care...
Additional Engineering Textbook Solutions
Find more solutions based on key concepts
Is it possible to pass initialization values to the constructor when you create an object? If so, how?
Starting out with Visual C# (4th Edition)
Finish the program that takes a word as a command-line argument and looks up the word to see whether it is in t...
Programming in C
For each of the following E-R diagrams from Chapter 2 C: Transform the diagram to a relational schema that show...
Modern Database Management
Show the output of the following code:
Introduction to Java Programming and Data Structures, Comprehensive Version (11th Edition)
The job of the _____ is to fetch instructions, carry out the operations commanded by the instructions, and prod...
Starting Out With Visual Basic (8th Edition)
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
- (Java) The Abstract Art Class Write an abstract class as follows: The class is named Art It inherits from the Comparable interface It has a private String member variable named name It has a private String member variable named artist It has a private int member variable called year It has a default constructor that assigns the values "No name" to name, "No artist" to artist and -1 to the year. This default constructor calls the three argument constructor. It has a three-argument constructor to assign values to the name, artist and year variables. It has a copy constructor that makes a copy of another non-null Art object It has getters and setters for the name, artist and year variables It has a toString() method that creates a string of artist, with name and year tabbed once on subsequent lines (see sample output) It has an equals method that compares this Art to another Object It has a compareTo method that compares in this order: 1) artist, 2) name, 3) year This class contains no…arrow_forward(The Time class) Design a class named Time. The class contains: - The data fields hour, minute, and second that represent a time. - A no-arg constructor that creates a Time object for the current time. (The values of the data fields will represent the current time.) -A constructor that constructs a Time object with a specified elapsed time since midnight, January 1, 1970, in milliseconds. (The values of the data fields will represent this time.) -A constructor that constructs a Time object with the specified hour, minute, and second. - Three getter methods for the data fields hour, minute, and second, respectively. -A method named setTime (long elapseTime) that sets a new time for the object using the elapsed time. For example, if the elapsed time is 555550000 milliseconds, the hour is 10, the minute is 19, and the second is 10. Draw the UML diagram for the class and then implement the class. Write a test program that creates two Time objects (using new Time (), new Time(555550000),…arrow_forward(Triangle class) Design a new Triangle class that extends the abstract GeometricObject class. Draw the UML diagram for the classes Triangle and GeometricObject and then implement the Triangle class. Write a test program that prompts the user to enter three sides of the triangle, a colour, and a Boolean value to indicate whether the triangle is filled. The program should create a Triangle object with these sides and set the colour and filled properties using the input. The program should display the area, perimeter, colour, and true or false to indicate whether it is filled or not.arrow_forward
- (The Person, Student, Employee, Faculty, and Staff classes) Design a class named Person and its two subclasses named Student and Employee. Make Faculty and Staff subclasses of Employee. A person has a name, address, phone number, and e-mail address. A student has a class status (freshman, sophomore, junior, or senior). Define the status as a constant. An employee has an office, salary, and date hired. Use the MyDate class defined in Programming Exercise 10.14 – see the textbook - to create an object for date hired. A faculty member has office hours and a rank. A staff member has a title. Override the toString method in each class to display the class name and the person's name. Draw the UML diagram for the classes and implement them. Write a test program that creates a Person, Student, Employee, Faculty, and Staff, and invokes their toString() methods.arrow_forward(Account class)Create an Account class that a bank might use to represent customers’ bank accounts. Include a data member of type int to represent the account balance. Provide a constructor that receives an initial balance and uses it to initialize the data member. The constructor should validate the initial balance to ensure that it’s greater than or equal to 0. If not, set the balance to 0 and display an error message indicating that the initial balance was invalid. Provide three member functions. Member function credit should add an amount to the current balance. Member function debit should withdraw money from the Account and ensure that the debit amount does not exceed the Account’s balance. If it does, the balance should be left unchanged, and the function should print a message indicating "Debit amount exceeded account balance." Member function get_Balance should return the current balance. Create a program that creates two Account objects and tests the member functions of class…arrow_forwardNutritional information (classes/constructors) PYTHON ONLY Complete the FoodItem class by adding a constructor to initialize a food item. The constructor should initialize the name (a string) to "None" and all other instance attributes to 0.0 by default. If the constructor is called with a food name, grams of fat, grams of carbohydrates, and grams of protein, the constructor should assign each instance attribute with the appropriate parameter value. The given program accepts as input a food item name, fat, carbs, and protein and the number of servings. The program creates a food item using the constructor parameters' default values and a food item using the input values. The program outputs the nutritional information and calories per serving for both food items. Ex: If the input is: M&M's10.034.02.01.0 where M&M's is the food name, 10.0 is the grams of fat, 34.0 is the grams of carbohydrates, 2.0 is the grams of protein, and 1.0 is the number of servings, the output is:…arrow_forward
- (10 points) Consider a new secondary method for the Statement component family. Complete the code of the WHILE and CALL cases in the implementation of the instance method aggression below. You may assume that the code for the other cases has already been written. /** * Switches all skip calls with infect calls. * * @ensures * public void aggression () { switch (this.kind ()) { // assume code for BLOCK, IF, and IF ELSE cases already implemented case WHILE: { } this = [#this with skip replaced by infect] } break; case CALL: { break; The del default: { // this will never happen break;arrow_forward(Date Class) Create a class called Date that includes three pieces of information as auto-implemented properties—a month (type int), a day (type int) and a year (type int). Your class should have a constructor that initializes the three automatic properties and assumes that the values provided are correct. Provide a method DisplayDate that displays the month, day and year separated by forward slashes (/). Write a test app named DateTest that demonstrates class Date’s capabilities.arrow_forward(Package Inheritance Hierarchy) Package-delivery services, such as FedEx® ,DHL®and UPS® ,offer a number of different shipping options, each with specific costsassociated. Create an inheritance hierarchy to represent various types of packages. Useclass Package as the base class of the hierarchy, then include classes TwoDayPackageand OvernightPackage that derive from Package.Base class Package should include data members representing the name, address, city,state and ZIPcode for both these sender and the recipient of the package, in addition todata members that store the weight (in ounces)and cost per ounce to ship the package.Package’s constructor should initialize these data members. Ensure that the weight andcost per ounce contain positive values. Package should provide a public memberfunction calculate Cost that returns a double indicating the cost associated with shippingthe package. Package’s calculate Cost function should determine the cost bymultiplying the weight by the cost per…arrow_forward
- (Package Inheritance Hierarchy) Package-delivery services, such as FedEx® ,DHL®and UPS® ,offer a number of different shipping options, each with specific costsassociated. Create an inheritance hierarchy to represent various types of packages. Useclass Package as the base class of the hierarchy, then include classes TwoDayPackageand OvernightPackage that derive from Package.Base class Package should include data members representing the name, address, city,state and ZIPcode for both these sender and the recipient of the package, in addition todata members that store the weight (in ounces)and cost per ounce to ship the package.Package’s constructor should initialize these data members. Ensure that the weight andcost per ounce contain positive values. Package should provide a public memberfunction calculate Cost that returns a double indicating the cost associated with shippingthe package. Package’s calculate Cost function should determine the cost bymultiplying the weight by the cost per…arrow_forward(JAVA) Create a class hierarchy to represent the different types of employees in an office who have the following job titles: manager, assistant, salesperson. Write an abstract base class called Employee that declares an abstract method: signature double calculateSalary() This class must also define the following attributes: name (String type), enrollment (String type) and base_salary (double type). Use encapsulation and provide a constructor that receives the corresponding values to be stored in the respective attributes. This abstract class must be extended by the other classes representing the types of employees, so the classes Manager, Assistant and Salesperson must be written. In each class you must override the method calculateSalario so that the salary calculation is done like this: The manager receives twice the base_salary, the assistant receives the base_salary and the salesperson receives the base_salary plus a commission defined in the constructor of his class. Create a…arrow_forwardoop using c++ please give me full answer thanks Write a Program that implements Base class calculator and a Derived class scientific calculator, The Derived class should take the basic operations i.e. add, divide, subtract from calculator. However it should have its own methods such as square root.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
Introduction to Variables; Author: Neso Academy;https://www.youtube.com/watch?v=fO4FwJOShdc;License: Standard YouTube License, CC-BY