Introduction to Java Programming and Data Structures, Comprehensive Version (11th Edition)
11th Edition
ISBN: 9780134670942
Author: Y. Daniel Liang
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Videos
Textbook Question
Chapter 13.2, Problem 13.2.2CP
The getArea() and getPerimeter() methods may be removed from the GeometricObject class. What are the benefits of defining getArea() and getPerimeter() as abstract methods in the GeometricObject class?
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
In order to implement different ways of discount strategies for an object oriented parking system, we have a DiscountStrategy interface and CompactWeekendDiscounts class. The CompactWeekendDiscounts class class checks if the date is a weekend and the car we are about to park is compact and makes a discount.
Based on the class diagram implement the two - a DiscountStrategy interface and CompactWeekendDiscounts class using java. (no need to implement ParkingLot class )
Design and implement a Java class named Book with two data members: title and price. The class should have suitable constructors, get/set methods, and the toString method. Design and implement another Java class named BookShelf which has an ArrayList data member named bookList to store books. The class should have suitable constructors, get/set methods, and the toString method, as well as methods for people to add a book (prototype: addBook(Book book)), remove a book (prototype: removeBook(Book book)), and search for a book (prototype: findBook(Book book)). Test the two classes by creating a Bookshelf object and five Book objects. Add the books to the bookshelf. Display the contents of the bookshelf. Test the removeBook and findBook methods as well. Take screenshots of your tests and submit them with your Java code (not the whole project)
Iterating over a collection of items is the job of the for construct's looping mechanism. So long as there are things to process, it will keep running forever. So, what do you make of this?
Chapter 13 Solutions
Introduction to Java Programming and Data Structures, Comprehensive Version (11th Edition)
Ch. 13.2 - Prob. 13.2.1CPCh. 13.2 - The getArea() and getPerimeter() methods may be...Ch. 13.2 - True or false? a.An abstract class can be used...Ch. 13.3 - Prob. 13.3.1CPCh. 13.3 - Prob. 13.3.2CPCh. 13.3 - Prob. 13.3.3CPCh. 13.3 - What is wrong in the following code? (Note the...Ch. 13.3 - What is wrong in the following code? public class...Ch. 13.4 - Can you create a Calendar object using the...Ch. 13.4 - Prob. 13.4.2CP
Ch. 13.4 - How do you create a Calendar object for the...Ch. 13.4 - For a Calendar object c, how do you get its year,...Ch. 13.5 - Prob. 13.5.1CPCh. 13.5 - Prob. 13.5.2CPCh. 13.5 - Prob. 13.5.3CPCh. 13.5 - Prob. 13.5.4CPCh. 13.6 - Prob. 13.6.1CPCh. 13.6 - Prob. 13.6.2CPCh. 13.6 - Can the following code be compiled? Why? Integer...Ch. 13.6 - Prob. 13.6.4CPCh. 13.6 - What is wrong in the following code? public class...Ch. 13.6 - Prob. 13.6.6CPCh. 13.6 - Listing 13.5 has an error. If you add list.add...Ch. 13.7 - Can a class invoke the super.clone() when...Ch. 13.7 - Prob. 13.7.2CPCh. 13.7 - Show the output of the following code:...Ch. 13.7 - Prob. 13.7.4CPCh. 13.7 - What is wrong in the following code? public class...Ch. 13.7 - Show the output of the following code: public...Ch. 13.8 - Prob. 13.8.1CPCh. 13.8 - Prob. 13.8.2CPCh. 13.8 - Prob. 13.8.3CPCh. 13.9 - Show the output of the following code: Rational r1...Ch. 13.9 - Prob. 13.9.2CPCh. 13.9 - Prob. 13.9.3CPCh. 13.9 - Simplify the code in lines 8285 in Listing 13.13...Ch. 13.9 - Prob. 13.9.5CPCh. 13.9 - The preceding question shows a bug in the toString...Ch. 13.10 - Describe class-design guidelines.Ch. 13 - (Triangle class) Design a new Triangle class that...Ch. 13 - (Shuffle ArrayList) Write the following method...Ch. 13 - (Sort ArrayList) Write the following method that...Ch. 13 - (Display calendars) Rewrite the PrintCalendar...Ch. 13 - (Enable GeometricObject comparable) Modify the...Ch. 13 - Prob. 13.6PECh. 13 - (The Colorable interface) Design an interface...Ch. 13 - (Revise the MyStack class) Rewrite the MyStack...Ch. 13 - Prob. 13.9PECh. 13 - Prob. 13.10PECh. 13 - (The Octagon class) Write a class named Octagon...Ch. 13 - Prob. 13.12PECh. 13 - Prob. 13.13PECh. 13 - (Demonstrate the benefits of encapsulation)...Ch. 13 - Prob. 13.15PECh. 13 - (Math: The Complex class) A complex number is a...Ch. 13 - (Use the Rational class) Write a program that...Ch. 13 - (Convert decimals to fractious) Write a program...Ch. 13 - (Algebra: solve quadratic equations) Rewrite...Ch. 13 - (Algebra: vertex form equations) The equation of a...
Additional Engineering Textbook Solutions
Find more solutions based on key concepts
What was the first application for Java?
Concepts Of Programming Languages
Referring back to Questions 3 of Section 2.3, if the machine used the pipeline technique discussed in the text,...
Computer Science: An Overview (12th Edition)
T F A class may only have one destructor.
Starting Out with C++ from Control Structures to Objects (9th Edition)
Write an SQL statement to display the name and breed of all pets, sorted by PetName.
Database Concepts (7th Edition)
(Interest Calculator) The simple interest on a loan is calculated by the formula Interest = principal * rate * ...
C How to Program (8th Edition)
When displaying a Java applet, the browser invokes the _____ to interpret the bytecode into the appropriate mac...
Web Development and Design Foundations with HTML5 (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
- Design an application that does the following: A Solid can be a FlatSurfaceSolid or a CurvedSurfaceSolid. Every solid will have a volume. The method volume will be polymorphic. A solid has faces, vertices and edges. A flat-surface solid also has a variable called side which represents the length of the side. A curved-surface solid also has a radius. A Cube is a FlatSurfaceSolid. A cube has 6 faces, 8 vertices and 12 edges. It will have a side. A Sphere is a CurvedSurfaceSolid. It has 1 face, 0 vertices and 0 edges. It will have a radius. Create an ArrayList of solids (driver file named YourLastNameCISC231Q1.java). The arraylist will have 4 elements – 2 cubes (one with side length 3 and another will side length 4) and 2 spheres (one with radius 3 and another with radius 4). Create a driver class to instantiate an array of solids and display the details of each solid along with the volume of each solid.arrow_forwardAre there obvious improvements that could be made here with respect the software design for Squares and Circles? What programming constructs were you familiar with, and which did you need to look up? Assume we used a separate array for Squares and for Circles rather than one unifying Object array. How would this complicate the task of adding a new Shape (say, a Triangle) to our ObjectList class?arrow_forwardTwo methods are not defined in the AbstractCollection class but must be defined in its subclasses for its other methods to function properly. Which methods are these? *Pythonarrow_forward
- Finish the TestPlane class that contains a main method that instantiates at least two Planes. Add instructions to instantiate your favorite plane and invoke each of the methods with a variety of parameter values to test each option within each method. To be able to test the functionality of each phase, you will add instructions to the main method in each phase.arrow_forwardShape -width: double -length: double +allmutatorMethods Shapes2D Shapes3D -height:double *calSize():double +calVolume():double 1. Define class Shape, 2DShape and 3DShape as per UML class diagram given. 2. Define all mutator methods(set and get) for all classes. 3. Define methods calArea() with formula area - width * length for 2DShapes. 4. Define methods calArea() with formula calvolume, volume = width*length*height for 3DShapes. In the main program, declare and set data in 1 object of 3DShapes. Create an array OR ArrayList of 2DShapes, set and display the info of all objects as shown in the output. 5.arrow_forwardQuestion: Implement the following UML class diagrams and test their methods. Shape - dimension1 : double - dimension2 : double + Shape(d1: double, d2 : double) + setDimension1(d1: double) : void + setDimension2(d2 : double) : void + getDimension10 : double + getDimension20 : double + getName() : String + getArea) : double + toString() : String Circle Rectangle - circleld : int - circleCounter : int + Circle(radius : double) + setRadius(radius : double) : void + getRadius) : double + getCircleld) : int + getCircleCounter) : int + getName() : String + getArea() : double + toString) : String - rectangleld : int - rectangleCounter : int + Rectangle(side1 : double, side2 : double) + setSide1(side1 : double) : void + getSide10 : double + setSide2(side2 : double) : void + getSide20 : double + getRectangleld0 : int + getRectangleCounter0 : int + getName() : String + getArea() : double + toString) : Stringarrow_forward
- This is for a modeling and simulation class. It requires statistics.arrow_forwardMake sure you know the difference between an abstract class and an interface and constructors.arrow_forwardWrite a class Point for 2D Cartesian co-ordinates. The class should have 2 fields: abscissa(x) and ordinately). The class should have a method which takes a Point object as parameter and finds the distance between the two points (calling object & argument). The class should also have a static method that takes 2 point objects and returns their midpoint as a new Point object. (No driver class or no other methods required) The distance (d) between 2 points (x1, y1) and (x2, y2) is given by: d = (x1 – x2)2 + (y1 – y2)² The midpoint (x3, y3) between 2 points (x1, y1) and (x2, y2) is given by: x3 = (x1+x2)/2 y3 = (y1+y2)/2arrow_forward
- This is for pygame Ball Class: The Ball class inherits from Drawable and it will draw a circle at its current location. You must implement at the very least the required methods of the base class (draw and get_rect), as well as a constructor. You may need to implement other methods as part of the public interface. This is the Drawable Classarrow_forwardIn this assignment, you will implement part of a bigger program that deals with jewelry. You must submit the full implementation for the following interface: public interface JewelryBagInterface { public boolean addJewelryItem(int id, Jewelry j, double weight); public boolean removeJewelryItem(int id); public double getTotalWeight (); public double getTotalPrice (); public double getTotalGoldWeight (); public double getTotalSilverWeight (); public double getTotalBronzeWeight (); public void printBagContents(); public void setMaximumWeight (double max_weight); public void removeAllGoldItems(); public void removeAllsilverItems (); public void removeAllBronzeItems (); public int getTotalNumberOfitems(); public int getTotalNumberOfGoldItems (); public int getTotalNumberOfSilverItems (); public int getTotalNumberOfBronzeItems (); The interface JewelryBag java is available on Moodle (including the method descriptions). In your Java program, define the following enumerated type: Public enum…arrow_forwardHelp, I am making a elevator simulation using polymorphism. I am not sure to do now. Any help would be appreciated. My code is at the bottom, that's all I could think off. There are 4 types of passengers in the system:Standard: This is the most common type of passenger and has a request percentage of 70%. Standard passengers have no special requirements.VIP: This type of passenger has a request percentage of 10%. VIP passengers are given priority and are more likely to be picked up by express elevators.Freight: This type of passenger has a request percentage of 15%. Freight passengers have large items that need to be transported and are more likely to be picked up by freight elevators.Glass: This type of passenger has a request percentage of 5%. Glass passengers have fragile items that need to be transported and are more likely to be picked up by glass elevators. public abstract class Passenger { public static int passangerCounter = 0; private String passengerID; protected…arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Microsoft Visual C#Computer ScienceISBN:9781337102100Author:Joyce, Farrell.Publisher:Cengage Learning,
Microsoft Visual C#
Computer Science
ISBN:9781337102100
Author:Joyce, Farrell.
Publisher:Cengage Learning,
Java random numbers; Author: Bro code;https://www.youtube.com/watch?v=VMZLPl16P5c;License: Standard YouTube License, CC-BY