Which of the following is the correct way to call the constructor of the parent class? Select one: O a. this.call0 O b. super0 O c. this0 O d. super.call) Clear my choice Which of the following class declaration is not allowed to be instantiated? Select one: O a. public class Person {} O b. public abstract class Person {} O c. class Person{} O d. None of these O e. public final class Person {}

Which of the following is the correct way to call the constructor of the parent class? Select one: O a. this.call0 O b. super0 O c. this0 O d. super.call) Clear my choice Which of the following class declaration is not allowed to be instantiated? Select one: O a. public class Person {} O b. public abstract class Person {} O c. class Person{} O d. None of these O e. public final class Person {}

EBK JAVA PROGRAMMING

9th Edition

ISBN:9781337671385

Author:FARRELL

Publisher:FARRELL

Chapter11: Advanced Inheritance Concepts

Section: Chapter Questions

Problem 7RQ

See similar textbooks

Similar questions

What is true about private fields of a class? They must be used with private methods. They are accessible from anywhere inside or outside of a class. They can never be used in a class. They can be accessed only by methods inside the class they are associated with. Which of these keywords is used to refer to a member of a base class from a subclass? power super this upper Which of the following is true about abstract classes? Note that if a class can be sub-classed, this simply means that it can be derived from. Abstract classes can only contain abstract methods. They cannot be sub-classed. Abstract classes cannot be instantiated, but they can be sub-classed. Abstract classes can only contain abstract methods. They can be sub-classed. Abstract classes can be instantiated, but they cannot be sub-classed.
Which of the following are true? If we derive a class from an abstract class, we can select which methods we choose to implement in our derived class. Abstract classed cannot have concrete methods. We can declare an instance of an abstract class. All of the above statements are false.
Which one is true? A) An inner class can be declared public or private subject to the same visibility rules applied to a member of the class. B)An inner class can be declared static. A static inner class can be accessed using the outer class name. A static inner class cannot access non-static members of the outer class. C)An inner class supports the work of its containing outer class and is compiled into a class named OuterClassName$InnerClassName.class. D)Inner classes can make programs simple and concise.
Create a class Course, which has one field: String courseName Create the constructor, accessor, and mutator for the class. Then, in the main method of this class, create an instance of the class with the name "CST1201". Write an equivalent while statement to replace the following for statement for (int i=2; i<100; i=i+2) { System.out.println(i); }
What is an abstract class? Choose only one option.(a) An object(b) A class with no methods.(c) A class with no concrete subclasses.(d) A class with at least one undefined message.(e) An interface.
We have two classes, Person and Employee. Both have a field, firstName. We have instances of these objectsPerson p and Employee e. Both p and e have the same value for firstName, specifically, p.firstName = “joe”and e.firstName = “joe” Which of the following statements is necessarily true? Group of answer choices 1. p.equals(e) will return true because they contain the same firstName. 2. We don’t know if either class will have an equals method. 3. There is not enough information to tell what p.equals(e) will return. 4. p.equals(e) will return false but p == e will be true.
Write a program named SalespersonDemo that instantiates objects using classes named Real EstateSalesperson and GirlScout. Demonstrate that each object can use a SalesSpeech() method appropriately. Also, use a MakeSale() method two or three times with each object, and display the final contents of each objects data fields. First, create an abstract class named Salesperson. Fields include first and last names; the Salesperson constructor requires both these values. Include properties for the fields. Include a method that returns a string that holds the Salespersons full nameâ€”the first and last names separated by a space. Then perform the following Create two child classes of Salesperson: Real EstateSalesperson and Girl Scout. The Real EstateSalesperson class contains fields for total value sold in dollars and total commission earned (both of which are initialized to 0), and a commission rate field required by the class constructor. The Girl Scout class includes a field to hold the number of boxes of cookies sold, which is initialized to 0. Include properties for every field. Create an interface named ISell able that contains two methods: SalesSpeech() and MakeSale(). In each Real EstateSalesperson and Girl Scout class, implement SalesSpeech() to display an appropriate one- or two-sentence sales speech that the objects of the class could use. In the Real Estatesalesperson class, implement the MakeSale() method to accept an integer dollar value for a house, add the value to the Real EstateSalespersons total value sold, and compute the total commission earned. In the Girl Scout class, implement the MakeSale() method to accept an integer representing the number of boxes of cookies sold and add it to the total field.
Create a class called Employee as a a derived class of the class Person. An employee record has an employee's name, address, gender(inherited from the class Person), an ID number whose type is String, an annual salary represented as a single value of type double, and a year the employee started work as a single value of type int. Your class should have a reasonable number of constructors and setter methods, as well as getter methods. Create another class containing a main method to fully test your class definition.
Create a class called Employee as a a derived class of the class Person. An employee record has an employee's name, address, gender(inherited from the class Person), an ID number whose type is String, an annual salary represented as a single value of type double, and a year the employee started work as a single value of type int. Your class should have a reasonable number of constructors and setter methods, as well as getter methods. Create another class containing a main method to fully test your class definition. programming language to be used is java
Give a complete definition of a class called TitledPerson, which youderive from the class Person in Listing 8.1. The class TitledPerson hasone additional String instance variable for a title, such as Ms., Mr.,or The Honorable. The class TitledPerson has two constructors: adefault constructor and one that sets both the name and the title. It hasa writeOutput method, a reset method, an equals method, an accessormethod getTitle that returns the title, and a mutator method setTitlethat changes the person’s title. For two titled people to be equal, theymust have the same name and the same title. You may want to use theclass Student in Listing 8.2 as a model.
Create a class called Employee as a a derived class of the class Person. An employee record has an employee's name, address, gender(inherited from the class Person), an ID number whose type is String, an annual salary represented as a single value of type double, and a year the employee started work as a single value of type int. Your class should have a reasonable number of constructors and setter methods, as well as getter methods. Write another class containing a main method to fully test your class definition.
1) Change the visibility of the variables and constructor in the Employee class to be more secure 2) Add an Admin class with the following features: a) The Admin class is a child of the Employee class b) Admin objects have an instance string password variable c) The Admin class has a 4 parameter constructor. One parameter sets the string, the other three parameters are used as arguments for a parent constructor call. d) Admin objects have an instance getInformation() method with a void return and an Employee object parameter. The method will request the calling Admin’s password and check user input. If input matches the password, the method will display the information of the Employee parameter Please use ***C Sharp** Language to answer the code