Can abstract classes also contain abstract properties?

Q: Explain how the constructors of base and derived classes work.

A: Constructors:   Constructors are used in programming languages such as C++, Java etc. which is a…

Q: What is the difference between a concrete and an abstract class?

A: Find Your Answer Below

Q: Is it legal to have an abstract class with all member functions pure virtual?

A: Given:   Is it legal to have an abstract class with all member functions pure virtual?

Q: Consider the foliowing code snippct which throw co.pilation error. Explain the reason of compilation…

A: You can declare a class as final by adding the modifier final in the class header. If you declare a…

Q: Can we use a default constructor of a class even if an explicit constructor is defined?

A: 1) The default constructor is the no-argument constructor automatically generated unless you define…

Q: en the inheritance is private, the private methods in base class are * .in the derived class (in…

A: Ans.) Option B i.e. Unreachable. Expalanation:- When the inheritance is private, the private…

Q: Write a code for the tracking problem: Consider a tracking program that will track four types of…

A: I have preffered using java language.

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 is wrong in the following abstract class definition? abstract class XY { abstract int…

A: According to the  information given:- We have to find out what is wrong in the following abstract…

Q: Can a class be a super class and a sub-class at the same time? Give example.

A: Yes, Lets Take an Example:

Q: What is an abstract class?

A: abstract class: abstract class are that class which contains both abstract and non-abstract methods…

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.

A: Because Classes can only extend from one other class, but can implement multiple interfaces.

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: Declaring a class virtual transforms it into an abstract class. T/F

A: Introduction: When it comes to object-oriented programming, a virtual class is a form of class where…

Q: Polymorphism - abstract class Banking Account class. Create an application with an abstract class…

A: Find the required code in java as language not mentioned given as below and sample output :

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

A: Answer is given below .

Q: "Abstract classes can be defined without any abstract methods" - Support this statement with proper…

A: The Answer is in below steps

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

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

Q: 1. Can you declare a class that contains abstract methods a non-abstract class? 2. Can you declare…

A: 1. No, the abstract methods can't be declared in non abstract class, it is the same reason you can't…

Q: What makes an abstract class different from other classes?

A: What makes an abstract class different from other classes?

Q: Is there any difference between abstract and concrete class? Give proper justification.

A: DIFFERENCE BETWEEN ABSTRACT CLASS AND CONCRETE CLASS: Following are the general differences between…

Q: What is an abstract class's purpose?

A: An Abstract Class is a class which can have 0 or more abstract methods

Q: Can we declare a class as Abstract without having any abstract method?

A: It is only possible to use an abstract method in an abstract class, and it does not have a body. The…

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: Write the difference between interface and abstract class

A: Interfaces and abstract classes are features of object-oriented programming languages (Java, C#) The…

Q: To prevent other classes inherit from a class named Car, you must define Car as an abstract class.

A: Inheritance is a property of using the properties of one class in another class

Q: QUESTION 5 All methods in an abstract class must also be declared abstract. O True False

A: Abstraction is a process of hiding the implementation details and showing only functionality to the…

Q: What is the purpose of an abstract class?

A: Abstract class: To make any class as an abstract class the programmer needs to use the abstract…

Q: Polym orphism is implemen ted via: Select one: O a. abstract classes а. O b. set/get/ constructor/…

A: Actually, program is a executable software that runs on a computer.

Q: s there any difference between abstract and concrete class? Give proper justification.

A: Abstract Class: An abstract class is a type of class in Java that is presentby  abstract keyword. An…

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: In the following statement: public abstract class Vehicle extends DD implements Car{ ...} DD can…

A: The correct answer of the questions is option "TRUE"

Q: How does visibility mode control the access of members in the derived class? Explain with an…

A: In C++, the keyword used with the derived class will tell whether the members in the base class are…

Q: Anonymous inner classes must implement interfaces or extend other classes.

A: Anonymous inner classes are required to implement interfaces or extend super classes at all times.…

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: Explain how abstract classes and methods work

A: An abstract class is a class which may contain abstract methods or normal methods.

Q: Define abstract classes.

A: Abstract class: Abstract class acts as a base class for derived class and it requires the derived…

Q: With appropriate examples, explain the features of static class members.

A: In C++, a class's data members and member methods can be classified as static. A class can have both…

Q: What does an abstract class serve?

A: Introduction: The abstract keyword must be used to declare any class as an abstract class.

Q: Write an abstract class, it can be anything well defined from the very basics.

A: