Explain when it’s necessary to use explicit casting when working with objects created from derived classes

Q: Any class that does not explicitly specify its superclass through an extends declaration implicitly…

A: SUMMARY: -Hence, we discussed all the points.

Q: Describe the difference between making a class a member of another class (object aggregation), and…

A: In object composition, one object is nested inside an object,creating a has-a relationship. When a…

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: 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: Fill-in-the-Blank Protected members of a base class are like __________ members, except they may be…

A: Protected Inheritance − once etymologizing from a protected base category, public and guarded…

Q: wing a new class to extend a

A: Describe a benefit from allowing a new class to extend an existing class.

Q: __________ is where a derived class has two or more base classes.

A: GIVEN: __________ is where a derived class has two or more base classes.

Q: Differentiate between abstract and concrete classes. Give examples from the scenario above

A: Please refer below for your reference:  abstract and concrete classes differences are below:…

Q: What is the order of Destructors call when the object of derived class child is declared, provided…

A: Base class constructors are called first and the derived class constructors are called next in…

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

A: Destructors: Destructors are a member function which is used to deletes an object. The destructor…

Q: When dealing with objects inherited from other classes, when does explicit casting need to be used?

A: Explanation: Give an example of when it is required to utilise explicit casting when dealing with…

Q: Why do you think the arguments to a base class constructor are specified in the definition of the…

A: Given: Why do you think the arguments to a base class constructor are specified in the definition of…

Q: True or False Polymorphism allows a class variable of the base class type to reference objects of…

A: Explanation: Polymorphism has on special capability, call the correct method based on object type…

Q: Why is the implementation of a destructor by a class required?

A: Introduction: Unless we have dynamically allocated memory or a pointer in the class, the default…

Q: Default constructors are inherited from the base class, thereby eliminating the need for derived…

A: The answer is "False".

Q: Why is a destructor function required in classes? Illustrate with the help of an example ?

A: Introduction In this question we will discuss why destructor function is required in classes.

Q: Static nested classes doesn't have access from enclosing class. to (i) Protected members (ii)…

A: Nested classes are those classes in which a class is mentioned inside other class.

Q: When deriving a class from a base class with public inheritance, public members of the base class…

A: When deriving a class from a base class with public inheritance, public members of the base class…

Q: What is the reason that base class constructors are called before derived class constructors?

A: At the time of the object initiation the base class objects can be accessed by the derived class, so…

Q: Explain when it's necessary to use explicit casting when working with objects created from derived…

A:

Q: A derived class’s constructor explicitly invokes its base class’s constructor, but a derived class’s…

A: Answer: A derived class’s constructor explicitly invokes its base class’s constructor,but a derived…

Q: Explain the difference between the private and protected members of a class.

A:

Q: is the term used to describe the process of making an instance of one class a member of another.

A: The process of making an instance of one class a member of another:

Q: Explain why you would need both public and private members in a class.

A: Public and private members of a class A public member is accessible from anywhere outside the class…

Q: Explain briefly about abstract class and concrete class with examples. Also write when do vou go for…

A: Answer : Abstract class : It is used as a base class from which you can derived other class. It is…

Q: Think of an example of two classes where one class is a special case of the other, and write…

A: We will solve this problem in Java Language. Animal class is going to be the first class and Dog…

Q: Fill the gap:  The________declares that a derived class is allowed to override a method.

A: To be determine: Fill the gap

Q: Is it mandatory to create constructor in derived class if base class contains constructor?…

A: Since the default constructor is automatically created when no definition for it is provided,…

Q: When do you need to downcast an object from a base class type to a derived class type?

A: Given When do you need to downcast an object from a base class type to a derived class type?

Q: Making an instance of one class a member of another class is called _____________

A: Ans:-  Aggregation

Q: When deriving a class from with protected inheritance, public members of the baseclass become…

A: Inheritance means reusing the existing functionality and this approach is provided by object…

Q: In a class with overloaded constructors, each version of the constructor must have a different

A: A constructor is a special type of method which has same name as of class name with no return type.…

Q: If a base class has a customized destructor, are you required to implement the destructor in the…

A: program code: // Header file section #include <stdio.h> using namespace std; Create the base…

Q: In this section, we discussed base classes and derived classes. Which is the general class and which…

A: Base class and derived class: A base class is also referred as "general class" or "base class" or…

Q: From its base class, what does a derived class gain or lose?

A: Derived class can be explained as the class which is created from the existing class. All the member…

Q: Code the example given above with mentioning some message indicating the class construction and…

A: We will print a message whenever the constructor is being called. And will print another message for…

Q: Fill-in-the-Blank If every C1 class object can be used as a C2 class object, the relationship…

A: Given: Fill-in blanks

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: Explain when explicit casting is required when dealing with objects built from derived classes.

A: Introduction: Explain when explicit casting is required when dealing with objects built from derived…

Q: Describe a benefit from allowing a new class to extend an existing class.

A: Inheritance is a technique by which a derived class extends a base class by using its member…

Q: Fill-in-the-Blank When both a base class and a derived class have constructors, the base class’s…

A: If we inherit a class from another class and build an object of the derived class, it is obvious…

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: