How can we ensure a method is not overridden by a subclass?   a. Making a method private will make it so the subclass cannot see the method, and it will not be able to override it and change its functionality. b. The protected keyword will protect the method from being overridden. c. The purpose of inheritance is to allow a sub-class to change any implementation of the parent class, so we cannot stop a method from being overridden. d. If the method does not appear in the interface we implement, the sub-class will not override it.

Q: Write a Java operator/keyword, which can be used to check the validity of reference before…

A: instanceof operator : The instanceof operator is used to check if the reference of the subclass is…

Q: It is the ability of an object to have many forms? Select one: O a. Interface O b. Polymorphism O c.…

A: Interface :- In this function declared only there is no function body   Inheritance :- class that…

Q: Let's say you have a method that expects the object of the superclass to be sent in as an argument.…

A: All non-static methods in Java operate independently of the reference type and instead depend on the…

Q: 1. Which SOLID principle would apply for the following statements? Justify your answer briefly. i.…

A: The question is on: which SOLID principle would apply for the following statements.

Q: 1. Creating overloaded methods with identical sets of parameters and different return types result…

A: Overloaded methods are differentiated based on the number and type of the parameters passed as an…

Q: Write a java program to create any number of classes with one controlling class to implement…

A: InheritanceWhen one object acquires all the properties and behaviors of a parent object, it is known…

Q: True/Fals 1. If a class implements an interface, it can pick and choose which methods from the…

A: Java is a general-purpose, object-oriented programming language that is used to create applications…

Q: Given a parent class and a subclass, which of the following is true? a. Because of single…

A: The above question is solved in step 2 :-

Q: For this problem you are to join the following classes into a hierarchy (use the UML diagrams from…

A: Introduction Super Class: In object-oriented programming, a superclass is a class that is inherited…

Q: Inheritance may be performed by creating two classes, with three data members in the parent class…

A: Inheritance may be performed by creating two classes, with three data members in the parent class…

Q: Explore the role of the "super" keyword in method overriding. How is it used to call a superclass…

A: In object-oriented programming, method overriding is a powerful concept that allows a subclass to…

Q: An unspecified data type can be used for both the parameters and the return type just for abstract…

A: All variables  must have a data type. So option 1,3, and 4 are incorrect

Q: II. Answer the following questions; provide appropriate explanations for your answer. 1. Every…

A: INTRODUCTION: We need to tell the ways inheritance promotes defect reduction.

Q: Which of the following statements are true. a) An abstract method contains a signature but no code…

A: 1) Abstract classes and methods are important concepts in object-oriented programming that help…

Q: 3. What is the difference between method overriding and method overloading?

A: 3. What is the difference between method overriding and method overloading? Method…

Q: Regarding the information hiding principle; A: Briefly describe it. B: State the advantages. A: How…

A: While doing programming in any programming language, you need to use various variables to store…

Q: In object oriented programming, inheritance improves code readability and maintenance by allowing…

A: Based on object oriented Programing

Q: hich can be used to check the validity of reference before attempting down-casting from superclass…

A: A Java operator that can be used to check the validity of reference before attempting down-casting…

Q: Class A is a subclass of B. The statement A myA = new A(); B myB = myA compiles successfully. This…

A: The above question is solved in step 2 :-

Q: A derived class... a. Can contain more attributes (data members) and behaviors (methods) than its…

A: a,b,d only.

Q: Is it possible to modify the scope of the subclass's overridden method?

A: ==> From Java perspective we can change the scope of the subclass's overridden method. ==>…

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: Create an inheritance hierarchy of Rodent: mouse, gerbil, hamster, guinea pig. In the base class,…

A: Handwritten code :-  \

Q: oop in c++ Q2 We need to add fly behaviour for ducks. But we know that all the types of ducks cannot…

A: Below are the answers with explanation:

Q: If a class needs to inherit from multiple parent classes, the parent classes must  a. be inherited…

A: Inheritance:- Inheritance is a concept in object-oriented programming (OOP) in which a class, called…

Q: i. Interface to Interface inheritance is possible. ii. Interfaces have only abstract methods. iii.…

A: Correct option is a iii iv v  are wrongly stated. The explanation is give below.

Q: Create an inheritance hierarchy of Rodent: mouse, gerbil, hamster, guinea pig. In the base class,…

A: Here we will need to create a class based on object oriented principles in java. class…

Q: Define a Card class which contains three PRIVATE (why?) variables for card suit, face value and the…

A: In this implementation, the variables for suit, face value, and isDrawn are made private because we…

Q: Let's pretend you have a method that expects its superclass's object as an argument. In this case,…

A: All non-static methods in Java are predicated on the underlying object's runtime type rather than…

Q: In object oriented programming, inheritance improves code readability and maintenance by allowing…

A: Based on object oriented programing

Q: Use C++ to code. Inheritance may be performed by creating two classes, with three data members in…

A: Answer is explained below in detail

Q: Create an interface class Figure with two member variables dim1, dim2. Create a parametrized…

A: Given,  Figure is an interface class with two member variables dim1,dim2. area and perimeter are…

Q: Suggest a simple scheme for creating a new class SafeMember that would allow us to export a…

A:

Q: Explore the use of the super keyword in method overriding. How does it allow a subclass to call the…

A: Given,Explore the use of the super keyword in method overriding.How does it allow a subclass to call…

Q: If the programmer doesn't declare any constructors for an extended class, what constructors will be…

A: by  bartleby guidelines i am able to do only first question.

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: