Which of the following is wrong? The Object class is a superclass of all other classes. O A variable of type Object can hold reference of any object, but not a null. O The class object defines an entity that combines state and behavior. All class and array types inherit the methods of class Object.

Which of the following is wrong? The Object class is a superclass of all other classes. O A variable of type Object can hold reference of any object, but not a null. O The class object defines an entity that combines state and behavior. All class and array types inherit the methods of class Object.

Microsoft Visual C#

7th Edition

ISBN:9781337102100

Author:Joyce, Farrell.

Publisher:Joyce, Farrell.

Chapter10: Introduction To Inheritance

Section: Chapter Questions

Problem 12RQ

See similar textbooks

Similar questions

Please help with the following: C# .NET change the main class so that the user is the one that as to put the name Write a driver class (app) that prompts for the person’s data input, instantiates an object of class HeartRates and displays the patient’s information from that object by calling the DisplayPatientRecord, method. MAIN CLASS---------------------- static void Main(string[] args) { // instance of patient record with each of the 4 parameters taking in a value HeartRates heartRate = new HeartRates("James", "Kill", 1988, 2021); heartRate.DisplayPatientRecord(); // call the method to display The Patient Record } CLASS HeartRATES------------------- class HeartRates { //class attributes private private string _First_Name; private string _Last_Name; private int _Birth_Year; private int _Current_Year; // Constructor which receives private parameters to initialize variables public HeartRates(string First_Name, string Last_Name, int Birth_Year, int Current_Year) { _First_Name =…
array of Payroll ObjectsDesign a PayRoll class that has data members for an employee’shourly pay rate and number of hours worked. Write a program withan array of seven PayRoll objects. The program should read thenumber of hours each employee worked and their hourly pay ratefrom a file and call class functions to store this information in theappropriate objects. It should then call a class function, once foreach object, to return the employee’s gross pay, so this informationcan be displayed.
In a course, a teacher gives the following tests and assignments:• A lab activity that is observed by the teacher and assigned a numeric score.• A pass/fail exam that has 10 questions. The minimum passing score is 70.• An essay that is assigned a numeric score.• A final exam that has 50 questionsWrite a class named CourseGrades . The class should have a member named gradesthat is an array of GradedActivity pointers. The grades array should have four ele-ments, one for each of the assignments previously described. The class should have thefollowing member functions:setLab : This function should accept the address of a GradedActivityobject as its argument. This object should already hold the stu-dent’s score for the lab activity. Element 0 of the grades arrayshould reference this object.setPassFailExam : This function should accept the address of a PassFailExamobject as its argument. This object should already hold the stu-dent’s score for the pass/fail exam. Element 1 of the grades…
Create a class called employee with the following details as variables within it. 1. Name of the employee (string) 2. Age (int) 3. Designation (string) 4. Salary (double) Write a program to create array of objects for the same to access these. Also, make use of member functions to accept values and print the name, age, designation and salary.
This is an object oriented programming question The code should be in c++ language Create a class Employee having a private data members E_ID, E_Name, E_Age and E_Salary. Now create a public member function void getData() and void ShowData() to take and display an employee data. In the main(), function create an array of Employee class, size of the array should be taken from user at run time and call all the functions defined in the class. Sample Output: Enter details of Employee 1 Enter Employee Id: 101 Enter Employee Name: Usman Enter Employee Age: 29 Enter Employee Salary: 45000 Enter details of Employee 2 Enter Employee Id: 102 Enter Employee Name: Sana Enter Employee Age: 31 Enter Employee Salary: 51000 Enter details of Employee 3…
18. If a class is declared as final, the incorrect statement is (). A. Indicates that this class is final B. Indicates that this class is a root class C. Methods in this class cannot be overridden D. Variables in this class cannot be hidden 19. In the following description of polymorphism, the incorrect one is (). A. Polymorphism refers to "one definition, multiple implementations" B. There are three types of polymorphism: dynamic polymorphism, static polymorphism, and default polymorphism C. Polymorphism is not used to speed up code D. Polymorphism is one of the core characteristics of OOP 20. In Java, two interfaces B and C have been defined. To define a class that implements these two interfaces, the correct statement is ( ). A. interface A extends B,C B. interface A implements B,C C. class A implements B,C D. class A extends B,C 21. Given the following java code, the correct description of the usage of "super" is (). class Student extends Person{ public Student() { super(); } 3 D…
Please read the main function and define a class CStudent. (object array, static member, string) Please do not change the main function and complete the program given. 【Description】 Please read the main function and define a class CStudent. In the main funciton, two arrays of the ojbect of CStudent are define. Please analyze the call of constructor and destructor in the process of creating and releasing objects. 1. CStudent has two private member variables：stirng name, int age. 2. CStudent has a static member count. It will be incremented by 1 when the object is created and decremented by 1 when the object is destroyed. 3. The constructor function should output "*** is contructing". The destructor function should output “*** is destructing”. "***" indicates the name of the current CStudent object. 【Input】 No input 【Output sample】 There are 0 students. noname is contructing noname is contructing noname is contructing noname is contructing noname is contructing name:noname…
Description: Create a class named ComparableDog that extends Animal and implements Comparable interface. Implement the compareTo method to compare the Dogs on the basis of age. Write a test class to find the bigger age of two instances of ComparableDog Objects, and complement the ComparableDog class with the missing part. 1) The test program, the ComparableDog class, and its super class Animal are given as follows. // Main method public static void main(String[] args) { // Create two comparable Dogs ComparableDog dog1 = new ComparableDog(3); ComparableDog dog2 = new ComparableDog(4); System.out.println("Dog1:" + dog1); System.out.println("Dog2:" + dog2); if(dog1.compareTo(dog2) == 1) System.out.println("Dog1 is older than Dog2"); else if(dog1.compareTo(dog2) == -1) System.out.println("Dog1 is younger than Dog2"); else System.out.println("Dog1 and Dog2 have the same age"); }…
This is an object oriented programming question The code should be in C++ language Create a class Student having a private data members S_ID, S_Name and S_CGPA. Now create a public member functions void getID(), void getName() and getCGPA() and finally to display all the data members, create a function void display(). In the main(), create an array of student class, size of the array should be taken from user at run time and call all the functions defined in the class. Sample Output: Student 1 Enter ID: 1 Enter Name: Ali Enter CGPA: 2.5 Student 2 Enter ID: 2 Enter Name: Ahmed Enter CGPA: 2.9 Student 3 Enter ID: 3 Enter Name: Zain Enter CGPA: 3.4 Student 1 informationID: 1 Name: Ali CGPA: 2.5 Student 2 information ID: 2 Name: Ahmed CGPA: 2.9 Student 3 information ID: 3 Name: Zain CGPA: 3.4
77255 Polymorphism - abstract class BankingAccount class. Create an application with an abstract class called Account with an abstract method calculateInterest, derive the following three classes from Account class 1. SBAccount 2. DAccount 3. FDAccount Implement the abstract method in these classes; Invoke these methods from the main method using the reference of BankingAccount class
User-defined Class:You will design and implement your own data class. The class will store data that has been read asuser input from the keyboard (see Getting Input below), and provide necessary operations. As thedata stored relates to monetary change, the class should be named Change. The class requires atleast 2 instance variables for the name of a person and the coin change amount to be given to thatperson. You may also wish to use 4 instance variables to represent amounts for each of the 4 coindenominations (see Client Class below). There should be no need for more than these instancevariables. However, if you wish to use more instance variables, you must provide legitimatejustification for their usage in the internal and external documentation.Your class will need to have at least a default constructor, and a constructor with two parameters:one parameter being a name and the other a coin amount. Your class should also provide appropriateget and set methods for client usage. Other…
Pointer and classImplement a class called Team as specified:data members:name - the name of the Team (defined as a dynamic variable)members - a dynamic array of stringsize - number of members in the team.functions:Course(): default constructor set name to “TBD”, and size to 0, members toempty listCourse(string): one argument constructor set name, and size to 0, members toempty listaccessor - an accessor for the name and size variablemutator - an mutator for the name variableUse following main() to test your class.int main() {Team a,b("Mets");cout<<a.getName()<<endl; // print TBDa.setName("Yankee");cout<<a.getName()<<endl; // print Yankeecout<<b.getName()<<endl; // print Metscout<<a.getSize()<<endl; // print 0return 0;}