Which of these is not a correct statement about abstract class? a. Every class containing abstract method must be declared abstract. b. Abstract class define only the structure of the class not its implementation c. Abstract class can be initiated by new operator d. Abstract class can be inherited

Which of these is not a correct statement about abstract class? a. Every class containing abstract method must be declared abstract. b. Abstract class define only the structure of the class not its implementation c. Abstract class can be initiated by new operator d. Abstract class can be inherited

C++ Programming: From Problem Analysis to Program Design

8th Edition

ISBN:9781337102087

Author:D. S. Malik

Publisher:D. S. Malik

Chapter11: Inheritance And Composition

Section: Chapter Questions

Problem 24SA

See similar textbooks

Related questions

Q: Which of these is not a correct statement about abstract class? Every class containing abstract…

A: Option 3 is the answer

Q: A subclass of an abstract class must be able to do all of the things the parent class can do. True…

A: The answer of this question is as follows:

Q: What are the differences between abstract classes and concrete classes?

A: Abstract Class: Abstract class in java is declared by using keyword abstract. An object of abstract…

Q: What will be the order of execution of base class constructors in the following method of…

A: In C++, When we create the object of an class then automatically the default constructor of that…

Q: QUESTION 17 Which of the following are incorrect? (Choose all that apply) A. You may declare a final…

A: Abstract class: In object-oriented programming a class which is declared with abstract keyword is…

Q: subclass must implement all of the abstract methods of its parent

A: A class that is declared using the “abstract” keyword is called abstract class. It can have the…

Q: Recall and apply the concepts of object oriented programming (Java)

A: Approach: here, abstract method getPercentage() of abstract class "Marks" is implemented by class A…

Q: The pillar that allows you to build a specialized version of a general class, but violates…

A: Object-Oriented programming: It is also called OOPs. OOPs, programming languages are those languages…

Q: When should an abstract class be used, when should an interface be used, and when should both be…

A: According to the provided information: We need to define the use of an abstract class, interface…

Q: You can make a class abstract by declaring it with keyword abstract. An abstract class normally…

A: An abstract class is a class which can have 0 or more abstract methods An abstract class is declared…

Q: An cannot be instantiated, they act as place holders for abstraction. a. Abstract class O b.…

A: A correct option is an option a i.e Abstract class

Q: The pillar that allows you to build a specialized version of a general class, but violates…

A: Answer is given below .

Q: 1. Explain the importance of method signature in method overriding. 2. The system might want to use…

A: 1) The method signature is basically a declaration of the instance function in the base class so…

Q: The following statements are related to polymorphism concept EXCEPT A. occurs when one or more…

A: Required:

Q: A is the superclass, whereas B and C are the subclasses. While B and C have certain similarities in…

A: Introduction: The parent or super-class of a class is the class it inherits. A subclass is a class…

Q: The mechanism of deriving a class from another derived class is known as? A. Polymorphism B.…

A: c. Multilevel Inheritance

Q: Object Oriented Programming Answer the following questions to assess your learning for const keyword…

A: Yes, we can access constant data member of a class from a non-constant member function of the same…

Q: To be a subclass of an abstract class, a subclass must implement all of its parent's abstract…

A: Introduction: Abstract class refers to a class defined using the "abstract" keyword. It may use both…

Q: Which of the following design concepts is unlikely used to justify the need for a refactoring that…

A: Which of the following design concepts is unlikely used to justify the need for a refactoring that…

Q: What is primary difference between an abstract class and a regular class?

A: Difference between an abstract class and a regular class:

Q: Q10. In multiple inheritance, if class C inherits two classes A and B as follows, which class…

A: Q10. In multiple inheritance, if class C inherits two classes A and B as follows, which class…

Q: Q10: Selct a false statement about abstract classes. a. An abstract class cannot be instantiated…

A: False Statement from the above abstract class

Q: Question 3: 1. Explain the importance of method signature in method overriding. 2. The system might…

A: 1.) The method signature is basically a declaration of the instance function in the base class so…

Q: This question is based on the class diagram shown in Figure 1. The parent class contains the general…

A: ALGORITHM:- 1. Create abstract class Transaction. 2. Create class Purchase and Sale and override the…

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: Design a class named Customer with field holding for customer's name, address, and telephone number.…

A: public class Customer { //declaring variables private String name; private String address;…

Q: UESTION 16 What must be true of a class with one abstract method? O The class must also implement…

A: 16) The abstract method must have the static modifier 17) Because we're using an array, all pets…

Q: Below class ABC doesn’t have even a single abstract method, but it has been declared as abstract. Is…

A: Abstract Class is a class which has 0 or more abstract methods Abstract methods are the methods…

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: Which of the following are incorrect? (Choose all that apply A. You may declare a final abstract…

A: We cannot make an abstract class as final because as we know a final class cannot be subclassed and…

Q: 4. Given, an abstract class as the following: abstract class Test{ abstract void add(); } Which one…

A: Answer: The right choice is option b.new Test() ; Simply in the given question right option b is…

Q: What is fundamental difference's between an abstract classes and interface (Write in maximum 5…

A: The answer has given below:

Q: 5. Is it compulsory for a class, which has been declared as abstract, to have at least one abstract…

A: An abstract class is defined as hiding the implementation and showing the function definition to the…

Q: An cannot be instantiated, they act as place holders for abstraction. O a. Abstract class O b.…

A: an Abstract class can be Subclassed but it cannot be instantiated. Also, only this acts as place…

Q: Both abstract classes and interfaces may be used to specify the behavior of common objects. Which…

A: Introduction: Interfaces and abstract classes are both characteristics of object-oriented…

Q: A subclass must fully implement all of the abstract methods of its parent class in order to be…

A: Given: If the subclass being used is not itself an abstract class, then the subclass of an abstract…

Q: A is a parent class whereas B and C are subclasses of A. Now, B and C share some common attributes…

A: Abstraction is a way to hide certain details of the implementation from the user. Both abstract…

Q: Given the following definitions: public abstract class Manager extends Employee {...} public class…

A: Option D. Compiler error because manager is abstract so an instance cannot be created is the correct…

Q: State a circumstance in which you would prefer an interface over an abstract class. Also, State a…

A: Since Interfaces doesn't exist in C++ but in Java, they do. in Java, I would use an interface when…

Q: Which of the following statements is TRUE about abstract classes in Java? A. An abstract class…

A: An abstract method is a method which has only declaration and definition is provided in some other…

Q: Question 3: 1. Explain the importance of method signature in method overriding. 2. The system might…

A: Method Signature In Java, a method signature is essential for the strategy presentation. It's the…

Q: Why would a class be declared as abstract?

A: REASONS TO DECLARE THE CLASS AS ABSTRACT: Abstract class are used for the purpose of providing…

Q: In what kind of situation would you want to use an abstract class instead of a base class?

A: In Java programming, an abstract class is a special class that is mainly used while deriving some…

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: Given the below program, explain why the bold text below is INVALID. abstract class Employee(…

A: Here in the given code, we have an abstract class named Employee with one abstract method…

Q: Explain the following question detail how to solve using java programming with detailed code and…

A: Create an abstract class. Also, create base class that extends an abstract class. Name it as…

Q: Which of the given modifiers is used when an abstract method is implemented by a derived class? a.…

A: Answer to the above question is in step2.

Concept explainers

OOPs

In today's technology-driven world, computer programming skills are in high demand. The object-oriented programming (OOP) approach is very much useful while designing and maintaining software programs. Object-oriented programming (OOP) is a basic programming paradigm that almost every developer has used at some stage in their career.

Constructor

The easiest way to think of a constructor in object-oriented programming (OOP) languages is:

Question

4. Which of these is not a correct statement about abstract class?
a. Every class containing abstract method must be declared abstract.
b. Abstract class define only the structure of the class not its implementation
c. Abstract class can be initiated by new operator
d. Abstract class can be inherited

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

This is a popular solution!

SEE SOLUTION Check out a sample Q&A here

Introduction

VIEW

Answer

VIEW

Trending now

This is a popular solution!

Step by step

Solved in 2 steps

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, computer-science and related others by exploring similar questions and additional content below.

Similar questions

Which of these is not a correct statement about abstract class? Every class containing abstract method must be declared abstract. Abstract class define only the structure of the class not its implementation Abstract class can be initiated by new operator Abstract class can be inherited
What is abstraction and what is the advantage of using an abstract class?
A is a parent class whereas B and C are subclasses of A. Now, B and Cshare some common attributes and some common methods, but there are somemethods in B and C that have very different implementations. Explain with reason whatA is going to be - a concrete class or an abstract class or an interface.
State a circumstance in which you would prefer an interface over an abstract class. Also, State a circumstance in which you would prefer an abstract class over an interface.
Draw a class diagram consisting of a base class named Person and a derived class named Student consist of : Encapsulation Polymorphism Inheritance Base classes vs Derived classes Protected Access vs Packaged Access & Abstract Methods and Classes
Class A is the parent class, while classes B and C are the subclasses of A. Both B and C contain several features and techniques that are equivalent to one another; nevertheless, the implementations of some of their methods are quite different between the two. Explain what kind of class A will be using logic; is it going to be a concrete class, an abstract class, or an interface?
B and C are its subclasses, and A is the parent class. Now, B and C have certain similar features and methods, but B and C implement a number of their methods very differently. Use logic to specify if A is a concrete class, an abstract class, or an interface.
Which OOP concept best illustrates the connection between the classes Nation and President, in which the class Nation has-a (an) object that belongs to the class President?
A subclass of an abstract class must be able to do all of the things the parent class can do. True or not?
A is the parent class, while B and C are the subclasses. While B and C have certain similarities in terms of features and methods, their implementations of some of their methods are rather different. Justify your choice of A as a concrete class, an abstract class, or an interface using logic.
When would you be most likely to use an abstract class? when you need to derive a class from Object when every method in the class is concrete when you need a super class that should not be instantiated when you need a super class that can be instantiated alongside the derived classes =========== Which UML symbol represents aggregation? a filled triangle an unfilled diamond an unfilled triangle a filled diamond
Class A is the top-level category, while classes B and C are its children. So, although B and C have certain common characteristics and methods, B and C's implementations of a number of those methods are quite different. Use reasoning to determine if A will be a concrete class, abstract class, or interface.