Q- Explain these Abstract class VS Concrete Class Interface (OOP) VS Interface ( GUI) External Interface VS Internal Interface Aggregation VS Composition Polymorphism VS Inheritance Subject: Software Design and Architecture

Q: B and C are its subclasses, and A is the parent class. Now, B and C have certain similar features…

A: Abstraction is a method for concealing some implementation details from the user. Both abstract…

Q: What are the characteristics of an abstract class?

A: Abstract Class A class which is declared with the abstract keyword is known as an abstract class in…

Q: Question 2: Both abstract classes and interfaces can be used for inheritance. a. Describe the…

A: Given: To write the differences between abstract classes and interfaces.

Q: Describe the advantages of interfaces versus abstract classes for your application

A: Introduction: Programming: Programming is creating a collection of instructions that tells a…

Q: 8) Explain the difference between implementing an interface and a derived class.

A: Answer: While implementing an interface, we need to implement all the methods declared in the…

Q: An object that has more than one form is referred to as: a. Interface b. Abstract class c.…

A: Object-oriented programming consists of various concepts. Interface, abstract class, polymorphism…

Q: Explain why interfaces are preferable to abstract classes

A: Interface-The interface in Java is a mechanism to achieve abstraction. Abstract class-A class which…

Q: Question 2: Both abstract classes and interfaces can be used for inheritance. а. Describe the…

A: Given: Write the difference between abstract class and an interface.

Q: What are the advantages of utilizing interfaces as opposed to abstract classes?

A: The answer of the question is given below

Q: Abstract classes and interfaces may both be used to specify common object behaviour. Is an interface…

A: Find the answer with explanation given as below :

Q: In terms of performance, what are the benefits of Interfaces over abstract classes?

A: Introduction: The benefits of Interfaces over abstract classes

Q: Provide an example of why you might prefer an interface over an abstract class. Additionally,…

A: Interface over Abstract class: Although interfaces do not exist in C++, they do in Java. When…

Q: To be a subclass of an abstract class, a subclass must implement all of the abstract methods of its…

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

Q: Explains what multilevel inheritance is and the difference between an interface and an abstract…

A: Multilevel inheritance is one of the type of inheritance in which  derived class is inherited by…

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: Both abstract classes and interfaces can be used to express common object behaviour. What factors…

A: Introduction: The abstract class It is a class that has been declared abstract; it may or may not…

Q: How inheritance is used for reusability of code. Coding examples would be encouraged

A: Actually, Inheritance is a acquiring the properties from one class to another class.

Q: The parent class is A, and the subclasses are B and C. The parent class is A, and the subclasses are…

A: An interface and a class are different and as mentioned in the first line, A is a class but and not…

Q: Explain the advantages of interfaces versus abstract classes.

A: Introduction: Computer programming is the process of creating a set of instructions that tells a…

Q: A subclass of an abstract class must provide concrete implementations for each of the parent class's…

A: Please find the detailed answer in the following steps.

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

A: The Answer is in below steps

Q: Exercise#1: Create a simple calculator using object oriented approach. Applying the following: V…

A: Here I have created a class named Calculator. In this class, I have created 4 anonymous classes that…

Q: A is the parent class, whereas B and C are subclasses. In some ways, B and C are quite similar yet…

A: Introduction: Abstraction is a technique used to conceal some implementation details from the user.…

Q: Justification for your preference for interfaces over abstract classes.

A: Introduction Computer Programming is the process of creating a set of instructions that tells a…

Q: A is the parent class, while B and C are the subclasses. While B and C have certain similarities in…

A: Concrete class : A concrete class is a class that has an execution for its strategies as a whole.…

Q: Distinguish between implementing an interface and implementing a derived class.

A: Answer: While implementing an interface, we need to implement all the methods declared in the…

Q: A subclass of an abstract class must implement all abstract methods of the parent class. True or…

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

Q: Draw the UML class dagram to demonstrate the concepts of Inheritance, Composition Interfaces by…

A:

Q: Explain why interfaces are better than simple classes.

A: A class is a combination of data and methods which defines behaviour. An interface defines methods…

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: Question 2: Both abstract classes and interfaces can be used for inheritance. a. Describe the…

A: Please find the solution below

Q: Question: Differentiate between the following OOP concepts, support your answers with examples.…

A: OOPs Concept:-  OOPs concept include Encapsulation, Inheritance, Abstraction and polymorphism.…

Q: Object-Oriented Features Used in Programming Practice with Inheritance and Polymorphism

A: The object oriented features in programming are: 1)Abstraction 2)Encapsulation  3)Poly morphism…

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

A: Note As per BNED rules we are allowed to answer 1 question at a time if you want the response of…

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: Explain why you prefer interfaces over abstract classes.

A: Introduction: Interface: It is a blueprint/template of the class that has abstract methods and…

Q: What are the fundamental differences between an abstract classes and interface?

A: The interface is an outline that can be utilized to actualize a class. It does not contain any solid…

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: What are the differences between abstract classes and interfaces?

A: Abstract class and interface both are utilized to accomplish deliberation where we can proclaim the…

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: create a new program containing: A class named Point, with two fields: x and y and a constructor to…

A: “Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: Define abstract classes.

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

Q: What does an abstract class serve?

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

Q: concrete class must implement AT LEAST ONE of the method headers given in the interface…

A: A interface is an abstract class that has only the method headers in it and the implementation is…

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: