a String expression to represent an object's state. a. toString () b. abstract c. super () d. this () 11. The call in a class constructor invokes the superclass's constructor that has the corresponding argument list. a. tostring () b. abstract c. super () d. this() 12. The call to invokes the constructor for the current class whose parameter list matches the argument list. a. tostring () b. abstract c. super () d. this () 13. If no constructors are defined for a class, the constructor for that class will be provided by default. a. private b. super c. public d. no-argument 14. What is a keyword to declare a subclass to a super class in Java? a. implements b. extends c. throws d. follows

a String expression to represent an object's state. a. toString () b. abstract c. super () d. this () 11. The call in a class constructor invokes the superclass's constructor that has the corresponding argument list. a. tostring () b. abstract c. super () d. this() 12. The call to invokes the constructor for the current class whose parameter list matches the argument list. a. tostring () b. abstract c. super () d. this () 13. If no constructors are defined for a class, the constructor for that class will be provided by default. a. private b. super c. public d. no-argument 14. What is a keyword to declare a subclass to a super class in Java? a. implements b. extends c. throws d. follows

EBK JAVA PROGRAMMING

9th Edition

ISBN:9781337671385

Author:FARRELL

Publisher:FARRELL

Chapter11: Advanced Inheritance Concepts

Section: Chapter Questions

Problem 2GZ

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Design/code/test a Java program containing an abstract the class absWelcome. This class should contain: 1. A public abstract void method (you name it) that is empty 2. A public regular method (you name it) that prints "Welcome to " Next, create a subclass clsHello that extends absWelcome. This class should contain: • A public regular method (you name it) that prints "Java Programming" Finally, inside the Main class create an object (you name it) from the clsHello class. Use this new object reference to: 1. Output "Welcome to " from the abstract class 2. Output "Java Programming" from the subclass Your output should resemble that shown below >sh -c javac -classpath -type f-name '*.java') java -classpath :targe Welcome to Java Programming
True or False A class can implement more than one interface.
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Please help with the following: C# .NET change the main class so that the user is the one that as to put the name in other words. Write a driver class that prompts for the person’s data input, instantiates an object of class HealtProfile and displays the patient’s information from that object by calling the DisplayHealthRecord, method. MAIN CLASS---------------------- static void Main(string[] args) { // Instance created holding 6 parameters which are field with value HealthProfile heartRate = new HealthProfile("James","Kill",1978, 79.5 ,175.5, 2021 ); heartRate.DisplayPatientRecord();// call the patient record method } CLASS HeartProfile------------------- public class HealthProfile { // attibutes which holds the following value private String _FirstName; private String _LastName; private int _BirthYear; private double _Height; private double _Weigth; private int _CurrentYear; public HealthProfile(string firstName, string lastName, int birthYear, double height, double wt, int…
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A class called Author is designed to model a book's author. It contains:• Three private instance variables: name (String), email (String), and gender (char of either'm' or 'f');• An __init__() to initialize the name, email and gender with the given values• Getters/Setters: getName(), getEmail(), setEmail(), and getGender()(There are no setters for name and gender, as these attributes cannot be changed.)• A __str__() method that returns printable string of that object with the following format:"Author[name=?,email=?,gender=?]"e.g., "Author[name=Tan Ah Teck,email=ahTeck@somewhere.com,gender=m]".Write the Author class. Also write a test driver code to test all the public functions, e.g.,ahTeck = Author("Tan Ah Teck", "ahteck@nowhere.com", 'm') # Test the constructorprint(ahTeck) # Test __str__()ahTeck.setEmail("paulTan@nowhere.com") # Test setterprint("Name is: ", ahTeck.getName()) # Test getterprint("Email is: ", ahTeck.getEmail()) # Test getterprint("Gender is: ", ahTeck.getGender()) #…
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Create a class student and then create an object of this class and work with it. Idfirst namelast namegradesdate of birthfield of studyenrolled coursesenrolled semester using constructors, setters-getters in JAVA programmingID must be generated
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2. The MyInteger Class Problem Description: Design a class named MyInteger. The class contains: n [] [] A private int data field named value that stores the int value represented by this object. A constructor that creates a MyInteger object for the specified int value. A get method that returns the int value. Methods isEven () and isOdd () that return true if the value is even or odd respectively. Static methods isEven (int) and isOdd (int) that return true if the specified value is even or odd respectively. Static methods isEven (MyInteger) and isOdd (MyInteger) that return true if the specified value is even or odd respectively. Methods equals (int) and equals (MyInteger) that return true if the value in the object is equal to the specified value. Implement the class. Write a client program that tests all methods in the class.