Starting Out with Java: From Control Structures through Objects (7th Edition) (What's New in Computer Science)
7th Edition
ISBN: 9780134802213
Author: Tony Gaddis
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Expert Solution & Answer
Chapter 10, Problem 19MC
Program Description Answer
The anonymous inner class must “implement an interface or extend a superclass”.
Hence, the correct answer is option “D”.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solutionStudents have asked these similar questions
Implement a JAVA application that keeps track of package deliveries to consumers. Theapplication consists of the following classes:• Item: Create a class called Item. The class has two member variables oftype String named name and description and provides getter and settermethods for both.• Mail (abstract class): Implement an abstract class called Mail . The class hasa member variable of type String named address and a getter method for it.• Letter: Implement a class called Letter that inherits from Mail . The classhas one member variable of type String named contents.• Package: Implement a class called Package that inherits from Mail . Theclass has one member variable of type Item[] named items and a gettermethod for it.• DeliveryTruck: Implement a class called DeliveryTruck with a singlemember variable of type Mail[] of length 10. Add the following method:o void load(Mail mail): This method stores the given mail argumentat the next available spot in the member variable.
kcom.
Write a code for the following using Console.WriteLine.
Chapter 10 Solutions
Starting Out with Java: From Control Structures through Objects (7th Edition) (What's New in Computer Science)
Ch. 10.1 - Here is the first line of a class declaration....Ch. 10.1 - Look at the following class declarations and...Ch. 10.1 - Class B extends class A. (Class A is the...Ch. 10.2 - Prob. 10.4CPCh. 10.2 - Look at the following classes: public class Ground...Ch. 10.3 - Under what circumstances would a subclass need to...Ch. 10.3 - How can a subclass method call an overridden...Ch. 10.3 - If a method in a subclass has the same signature...Ch. 10.3 - If a method in a subclass has the same name as a...Ch. 10.3 - Prob. 10.10CP
Ch. 10.4 - When a class member is declared as protected, what...Ch. 10.4 - What is the difference between private members and...Ch. 10.4 - Why should you avoid making class members...Ch. 10.4 - Prob. 10.14CPCh. 10.4 - Why is it easy to give package access to a class...Ch. 10.6 - Look at the following class definition: public...Ch. 10.6 - When you create a class, it automatically has a...Ch. 10.7 - Recall the Rectangle and Cube classes discussed...Ch. 10.8 - Prob. 10.19CPCh. 10.8 - If a subclass extends a superclass with an...Ch. 10.8 - What is the purpose of an abstract class?Ch. 10.8 - If a class is defined as abstract, what can you...Ch. 10.9 - Prob. 10.23CPCh. 10.9 - Prob. 10.24CPCh. 10.9 - Prob. 10.25CPCh. 10.9 - Prob. 10.26CPCh. 10.9 - Prob. 10.27CPCh. 10.9 - Prob. 10.28CPCh. 10 - In an inheritance relationship, this is the...Ch. 10 - In an inheritance relationship, this is the...Ch. 10 - This key word indicates that a class inherits from...Ch. 10 - A subclass does not have access to these...Ch. 10 - This key word refers to an objects superclass. a....Ch. 10 - In a subclass constructor, a call to the...Ch. 10 - The following is an explicit call to the...Ch. 10 - A method in a subclass that has the same signature...Ch. 10 - A method in a subclass having the same name as a...Ch. 10 - These superclass members are accessible to...Ch. 10 - Prob. 11MCCh. 10 - With this type of binding, the Java Virtual...Ch. 10 - This operator can be used to determine whether a...Ch. 10 - When a class implements an interface, it must...Ch. 10 - Prob. 15MCCh. 10 - Prob. 16MCCh. 10 - Abstract classes cannot ___________. a. be used as...Ch. 10 - You use the __________ operator to define an...Ch. 10 - Prob. 19MCCh. 10 - Prob. 20MCCh. 10 - You can use a lambda expression to instantiate an...Ch. 10 - True or False: Constructors are not inherited.Ch. 10 - True or False: in a subclass, a call to the...Ch. 10 - True or False: If a subclass constructor does not...Ch. 10 - True or False: An object of a superclass can...Ch. 10 - True or False: The superclass constructor always...Ch. 10 - True or False: When a method is declared with the...Ch. 10 - True or False: A superclass has a member with...Ch. 10 - True or False: A superclass reference variable can...Ch. 10 - True or False: A subclass reference variable can...Ch. 10 - True or False: When a class contains an abstract...Ch. 10 - True or False: A class may only implement one...Ch. 10 - True or False: By default all members of an...Ch. 10 - // Superclass public class Vehicle { (Member...Ch. 10 - // Superclass public class Vehicle { private...Ch. 10 - // Superclass public class Vehicle { private...Ch. 10 - // Superclass public class Vehicle { public...Ch. 10 - Write the first line of the definition for a...Ch. 10 - Look at the following code, which is the first...Ch. 10 - Write the declaration for class B. The classs...Ch. 10 - Write the statement that calls a superclass...Ch. 10 - A superclass has the following method: public void...Ch. 10 - A superclass has the following abstract method:...Ch. 10 - Prob. 7AWCh. 10 - Prob. 8AWCh. 10 - Look at the following interface: public interface...Ch. 10 - Prob. 1SACh. 10 - A program uses two classes: Animal and Dog. Which...Ch. 10 - What is the superclass and what is the subclass in...Ch. 10 - What is the difference between a protected class...Ch. 10 - Can a subclass ever directly access the private...Ch. 10 - Which constructor is called first, that of the...Ch. 10 - What is the difference between overriding a...Ch. 10 - Prob. 8SACh. 10 - Prob. 9SACh. 10 - Prob. 10SACh. 10 - What is an. abstract class?Ch. 10 - Prob. 12SACh. 10 - When you instantiate an anonymous inner class, the...Ch. 10 - Prob. 14SACh. 10 - Prob. 15SACh. 10 - Employee and ProductionWorker Classes Design a...Ch. 10 - ShiftSupervisor Class In a particular factory, a...Ch. 10 - TeamLeader Class In a particular factory, a team...Ch. 10 - Essay Class Design an Essay class that extends the...Ch. 10 - Course Grades In a course, a teacher gives the...Ch. 10 - Analyzable Interface Modify the CourseGrades class...Ch. 10 - Person and Customer Classes Design a class named...Ch. 10 - PreferredCustomer Class A retail store has a...Ch. 10 - BankAccount and SavingsAccount Classes Design an...Ch. 10 - Ship, CruiseShip, and CargoShip Classes Design a...
Knowledge Booster
Similar questions
- T/F1. Interface classes cannot be extended but classes that implement interfaces can be extended.arrow_forwardT/F 1. Interface classes cannot be extended but classes that implement interfaces can be extended.arrow_forwardPolymorphism in Java is Select one: a.when a program uses several different types of objects, each with its own variable. b.when a single variable is used with several different types of related objects in a program. c.when a single parent class has many child classes The following code fragment is polymorphic: for(Shape shape : shapes) if(shape instanceof Circle) { Circle c = (Circle) shape; // cast to a circle c.draw(g); // call the circle's draw method } else if(shape instanceof Rect) { Rect r = (Rect) shape; r.draw(g); } True or False The following code fragment is polymorphic: for(Shape shape : shapes) shape.draw(g) True or Falsearrow_forward
- Write a complete Java class that can be used to create a Hamster object as described below: A Hamster has-a: - name - age - breed favorite wheel a) Add all instance variables b) The class must have getters and setters for all instance variables c) The class must have two constructors: a no-args constructor and a constructor that receives all data fields as parameters d) The class must have a toString() e) Add a main method and create 2 Hamsters using each of the constructors you createdarrow_forwardPart 1. Create a Parent Class Create a complete Java class that can be used to create a Computer object as described below: A Computer has-a: Мапufacturer Disk Size Manufacturing Date Number of cores a) Add all instance variables (data encapsulation is expected) b) The class must have getters and setters for all instance variables c) The class must have two constructors, a no-arg and a constructor that receives input parameters for each instance variable. d) Implement toString() method for your classarrow_forwardonly need correct answer no need for workingarrow_forward
- JAVA OOP 2 Design a currency converter class whose instance will handle conversion of all currencies. A single instance of the new currency converter class you design here will handle all currencies. Instead of having specific conversion methods such as toDollar, toYen, and so forth, the new currency converter class supports one generic conversion method called exchange. The method has three arguments: fromCurrency, toCurrency, and amount. The first two arguments are String and give the names of currencies. The third argument is float.arrow_forwardJava programming lnguagearrow_forwardImplement the concept of polymorphism using interfaces in Java. • Create an interface class named Shape o Adraw() method. • Create a class named Circle o Circleimplements the Shape interface. o Override draw0 method. • Create a class named Square o Squareimplements the Shape interface. o Override draw) method. • Create a class named Triangle o Triangleimplements the Shape interface. o Override draw0 method. • In the MainClass, you have to create one method: o A main method, in which you create object of a Circle, Square and Triangleand print shapes with reference of Circle, Square and Triangle.arrow_forward
- Form a subclass StateQuarter from the class Coin. A state quarter has a state theme. The toString method should yield a string such as StateQuarter[value=0.25,name=Quarter][state=California] /** A quarter with a state theme.*/public class StateQuarter extends Coin{ // Type your code here /** Constructs a state quarter. @param aState the state name */ public StateQuarter(String aState) { super(0.25, "Quarter"); // Type your code here } /** Gets the description of this object. @return a description of this coin */ public String toString() { // Type your code here }}arrow_forwardWhich keyword is used to inherit a superclass into subclass? a. extends O b. void C. abstract O d. implementsarrow_forwardin java : Implement the following class: Class name: Student - where an instance of class Student represents a student. Private member variables: · name, which is a String representing the name of the student · class, which is a String representing the class the student is enrolled in (i.e. CS155) · grade, which is a String representing the grade of the student (i.e. A, B, C, D, F) (they are all-capital-letters) Public member methods: - a constructor () - set name - set class - set grade - get name - get class -get grade Write a test program (main method) that: · Maintains an array studentArray of base type Student Student [] studentArray; · The program will read from the user and store the information of the following 7 (SEVEN) students: Dalia Thomas CS155 A Sarah Johns CS155 A Adam Jack CS155 B Sandra Johnson CS256 A Tim Locks CS155 C Laila Zelle CS265 C Sam Adams CS265 A…arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
- EBK JAVA PROGRAMMINGComputer ScienceISBN:9781337671385Author:FARRELLPublisher:CENGAGE LEARNING - CONSIGNMENTMicrosoft Visual C#Computer ScienceISBN:9781337102100Author:Joyce, Farrell.Publisher:Cengage Learning,
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,