Indications: Person is an abstract class containing the abstract method Print(). In Teacher and Student the method print method will print the information of either Teacher or Student.

Q: Write a class sum: There are two abstract methods, the child class these must implement methods.…

A: Note: This is a multiple-question-based problem. As per company guidelines, only the first questions…

Q: True or False, An abstract class must have at least one abstract method.

A: An abstract class is defined as a class which contains 0 or more abstract methods.  If it contains…

Q: An instance of an abstract class is made by using the keyword 'new'. true or false

A: An instance of an abstract class is made by using the keyword 'new'  :

Q: Create an abstract class that stores data about the shapes e.g. Number of Lines in a Shape, Pen…

A: import java.awt.*; abstract class Shape {    protected int numberOfLines;    protected Color…

Q: Write the code below for the Computer class. The Computer class must be an abstract class, and have…

A: As no programming language is mentioned, it is solved using basic Java

Q: Given: abstract class A{ int a; int b; } class B extends A{ int a; } O cannot make class A abstract…

A: Answer 1: A- cannot make class A abstract   Abstract classes can not be instantiated.

Q: Write the classes as shown in the following class diagram. Add a tester that asks the user for a…

A: public abstract class Animal{    //declaring variable    private String name;        //constructor…

Q: 1. Implement a class name Vehicle: a. A Vehicle class with two private data members: brand,…

A: Objective: The program would create a Vehicle class including two members like brand and number of…

Q: Design a new Triangle class that extends the abstract GeometricObject class. Draw the UML diagram…

A: import java.util.Scanner; abstract class GeometricObject {    abstract public void perimeter();…

Q: Design a new Triangle class that extends the abstract GeometricObject class: Draw the UML diagram…

A: Creating a abstract GeometricObject class defines the abstract functions in that. And extends the…

Q: public class date {  private int day; // from 1 to 31  private int month; // from 1 to 12…

A: Follow the below points: Define the default constructor and set the values of day and month as 1.…

Q: 1. Create an abstract class that stores data about the shapes e.g. Number of Lines in a Shape, Pen…

A: the code is given below :

Q: Design a new Triangle class that extends the abstract GeometricObject class: • Draw the UML diagram…

A: Creating a abstract GeometricObject class defines the abstract functions in that. And extends the…

Q: Add an unusual copy constructor for the Point class. When the copy constructor is invoked, it will…

A: pointCloud *x = new pointCloud; The above line creates a new pointCloud object. Since no parameter…

Q: An object can be created from an abstract class is it true or false

A: Ans : False that An object can be created from an abstract class.

Q: When a concrete class inherits from an abstract class, you have to implement all abstract methods…

A: If we define any class an abstract class that means it contains some abstract or non abstract method…

Q: Abstract methods are used when defining a) interface classes b) derived classes c) classes that have…

A: A) interface classes

Q: public class Tire{ } public abstract class Vehicle {} public abstract class LandVehicle extends…

A: in line B, Vehicle is an abstract class, so it cant be instantiated, so this line will  not work. in…

Q: Define an abstract class LivingBeing. Define abstract methods breath, sleep, eats. Define Subclasses…

A: Sample Response: //Abstract class definitionabstract class LivingBeing{  //Abstract methods  public…

Q: The Temperature class is an abstract class with two abstract methods. Create the Conversion class…

A: Use if conditional statements to check the temperature type and invoke respective method and while…

Q: abstract class A{ int a; int b; abstract void methodA(); class B extends A{ int a; void methodA(){…

A: Objective: Two questions are given on java inheritance and abstract class or method characteristics.…

Q: Class A is composed of objects of class B, class B is extended by C & D. There should be a copy…

A: Explanation: A is composed of objects of class B, so it does not need a copy constructor. B is…

Q: Class student inherits from superclass Person. Which assignment is legal? a) Student s = new…

A: class Person { //Code }   class Student extends Person { //code } A subclass inherits all the…

Q: magine a publishing company that markets both book and audiocassette versions of its works. I it…

A: code in c++

Q: It has just one Main class which tests abstract class Animal and its 3 subclasses: Dog, Cat, and…

A: Question given:  A program code is given of driver class. Write all classes and their method that…

Q: It has just one Main class which tests abstract class Animal and its 3 subclasses: Dog, Cat, and…

A: //declaring interfacepublic interface Talker{    //declaring abstract methods    public void…

Q: ) Write an abstract class -Data members: numWheels - Constructor: initialize numWheels - Concrete…

A: here is code in java create a function and create the mileage and return the value

Q: · Exercise # 2: Implement a class Portfolio. This class has two objects, checking and saving, of the…

A: Actually, python is easiest programming language. It is a dynamically typed programming language. It…

Q: *For Cat and Animal class, correct way of inheritance is class Animal: public Cat O class Cat:…

A:

Q: * For Cat and Animal class, correct way of inheritance is class Animal: public Cat O class Cat:…

A: It is a mechanism where one object acquires all the properties and behaviors of a parent object. It…

Q: Consider the following code snippet which throw compilation error. Explain the reason for the…

A: We are given a java code where a declaration is given and this part of the code is throwing a…

Q: An abstract class can extend another abstract class and implement multiple interfaces. Select one: O…

A: Answer is TRUE

Q: True or False: In order to derive class A from class B, class A must contain a public member…

A: Here is the solution  :

Q: You only can instantiate concrete classes, not abstract ones. But you can extend abstract classes as…

A: this statement is true You can only instantiate concrete classes, not abstract ones, but you can…

Q: True or False A child class cannot override the parent’s definition of an inherited method.

A: Given True /false Statement: A child class cannot override the parent’s definition of an inherited…

Q: n the following statement: public abstract class Vehicle extends DD implements Car{ . . . } DD must…

A: Note: Please note that we are only allowed to solve one question in one post. if you want to get…

Q: True or False A class can implement more than one interface.

A: Class is a user-defined data type that encapsulates the data members and member functions. An…

Q: Create a class Animal and Add a protected data member named id of integer type. Add get/set methods…

A: Key Points When we make any object of class at that time constructor would be called. And when…

Q: True or FalseProperties in a base class cannot be overridden in the same way that methods can be…

A: The answer is given below,

Q: a class Rectangle with two member integer variables length and breadth. Write the parameterized…

A: the C++ language to create a class Rectangle with two member integer variables length and breadth.…

Q: ) Rewrite the Circle Class previously defined in lectures, to overload all ecessary operators (+ , -…

A: Given code working :-   #include <iostream> #include "Class_Circle.h" using namespace std;…

Q: Given an abstract class Car with abstract methods like getModel and getMaxSpeed.  Create a class…

A: import java.util.Scanner; class CarTest { public static void main(String[] args) {…

Q: To implement an interface, a concrete class must implement AT LEAST ONE method headings listed in…

A: In general, an interface is a tool or a device that unrelated entities use to interact.

Q: hen the inheritance is private, the private methods in base class are __________ in the derived…

A: Explanation:  When the inheritance is private, the private methods in the base class are…

Q: Design a class named Person with properties for holding a person’s name, address, and telephone…

A: Program plan:

Q: Design a class named Person with properties for holding a person’s name, address, and telephone…

A: Program plan: ·         Design the page: o   Add title to the form as “Person & Customer…

Q: Breify write Types of anonymous inner class and its advantage with example or syntax

A: Given: Breify write Types of anonymous inner class and its advantage with example or syntax

Q: T/F1. Interface classes cannot be expanded, but implementation classes may.

A: Introduction: Classes that implement interfaces cannot be expanded, whereas classes that implement…

Q: Design and implement a class called Car  that contains instance data that represents the make,…

A: Program description:  The Car class contains the instance variables for make, model, and year . The…

Q: T/F1. Interface classes cannot be extended but classes that implement interfaces can be extended.

A: Given that, Interface classes cannot be extended but classes that implement interfaces can be…