What are the similarities between structs and classes? (Select all that apply) - Private data members cannot be accessed outside of the class or struct -A default constructor will always be provided in both structs and classes to allow objects to be constructed -In both cases, objects are instances containing values -Operator == can be used to compare either struct or class variables of the same type -Operator = can assign variables of the same type by copying the values on the right to the object on the left -Variables of type struct or class that are declared in a function can be a return value for the function.

What are the similarities between structs and classes? (Select all that apply) - Private data members cannot be accessed outside of the class or struct -A default constructor will always be provided in both structs and classes to allow objects to be constructed -In both cases, objects are instances containing values -Operator == can be used to compare either struct or class variables of the same type -Operator = can assign variables of the same type by copying the values on the right to the object on the left -Variables of type struct or class that are declared in a function can be a return value for the function.

C++ Programming: From Problem Analysis to Program Design

8th Edition

ISBN:9781337102087

Author:D. S. Malik

Publisher:D. S. Malik

Chapter10: Classes And Data Abstraction

Section: Chapter Questions

Problem 13SA

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(Hand Written Submission) Question # 1 a) What is the difference between an interface, class and an instance of the class?b) Is it a good idea to make member variables private? Why or why not?c) What is a constructor? Is it possible to have more than one constructor?d) What is the difference between static data member and an instance data member?e) What is the difference between composition and aggregation? Question # 2 Write a program to model the kinds of people one finds in a university. The categories are students,teachers and teaching assistant (TAs). All these categories are kinds of Person (Person is abstract class. Ateaching assistant (TA) is a student and a teacher as well.A person has a name (string). A student has grade point average GPA (between 0 to 4), the teacher hasthe number of scholarly papers he/she has published and the teacher assistant has the number of courseshe/she assists.All the classes contain constructors with default arguments to fill all data…
- Simple factory is not considered a design pattern because it does not decouple the client from concrete classes Select one: True False 2- structural patterns provide guidance on the way in which classes interact to distribute responsibility Select one: True False 3- The Simple factory is used when you want to limit the instantiation of classes to one implementation Select one: True False 4- When a class A is composing a reference to another class B, then we say that class A has-a class B relationship Select one: True False
Please help me explain the below. They are on classes and objects - Data Encapsulation Definition - What does a class comprise of? - What are the different access specifiers and the difference between them - What are accessor and mutator methods - How do you create an object for a class - What is data hiding? - What is a constructor used for? - How do you write a constructor for a class? - What is function overloading and constructor overloading? - What is the use of the this keyword? - Passing objects to methods - What is the toString Method used for?
Create a class named 'Member' having the following members using C++:Data members 1 - Name 2 - Age 3 - Phone number 4 - Address 5 - Salary It also has a method named 'printSalary' which prints the salary of the members. Two classes 'Employee' and 'Manager' inherits the 'Member' class. The 'Employee' and 'Manager' classes have data members 'specialization' and 'department' respectively. Now, assign name, age, phone number, address and salary to an employee and a manager by making an object of both of these classes and print the same.
Answer the given question with a proper explanation and step-by-step solution. The base class Pet has protected fields petName, and petAge. The derived class Cat extends the Pet class and includes a private field for catBreed. Complete main() to: create a generic pet and print information using printInfo(). create a Cat pet, use printInfo() to print information, and add a statement to print the cat's breed using the getBreed() method.
I need help in True or False for following conditions in OOP URGENT True or False 1) a)Inheritance is an OOP concept such that a class can be defined in different ways, such as either being typecasted to itself (as a subclass) or any of its superclasses. b)Abstraction is a concept of OOP which advocates for hiding of unnecessary information. For example, if a superclass is not meant to be instantiated, it can be abstracted such that no instances will be made -- only non-abstract instances that extend it can be made. c)Encapsulation refers to the OOP concept that classes are responsible for maintaining the integrity of their own data. As such, one way to maintain encapsulation to ensure that all variables and methods are set to public. d)Composition is a specific type of Inheritance. e)Composition is commonly known as the "is a" relationship, where one class is a specific type of another class. f)With Association, it is common to see one class being passed into another class'…
What is polymorphic data structure? Select one: a.It is a data structure which contains as the data the instances of same classes.All classes usable for storing must have the same parent and can't contain the virtual methods. b.It is a data structure which contains as the data the instances of same classes.All classes usable for storing must have the same parent and must contain the virtual methods. c.It is a data structure which contains as the data the instances of same classes.All classes usable for storing must have the same parent and can contain the virtual methods. d.It is a data structure which contains as the data the instances of different classes.All classes usable for storing must have the same parent and contain the virtual methods.
Answer this iin C++: Given main(), complete the Calculator class (in files Calculator.h and Calculator.cpp) that emulates basic functions of a calculator: add, subtract, multiple, divide, and clear. The class has one private data member called value for the calculator's current value. Implement the following constructor and public member functions as listed below: Calculator() - default constructor to set the data member to 0.0 void Add(double val) - add the parameter to the data member void Subtract(double val) - subtract the parameter from the data member void Multiply(double val) - multiply the data member by the parameter void Divide(double val) - divide the data member by the parameter void Clear( ) - set the data member to 0.0 double GetValue( ) - return the data member Given two double input values num1 and num2, the program outputs the following values: The initial value of the data member, value The value after adding num1 The value after multiplying by 3 The value after…
Declare classes Person and Student where Student is derived from Person class. Person has Name and Student has RollNo as its private member. Create a Student class object and initialize it with the already existing object of Student class. Analyze the behavior of default constructors of Person and Student classes. Create a Student class object and initialize it with the already existing object of Student class. Analyze the behavior of default copy constructors of Person and Student classes. Explicitly write copy constructor for Person class. Analyze the behavior. Now, Explicitly write copy constructor for the Student class.
Model a room class, whose member data is three integers length, width and height. The classcontains two constructors to initialize the room class objects, first is no argumentconstructor, while the second in three arguments constructor. Class also contains threemember functions i.e., getdatat) to get the data from user and store in the memory of callingobject and showdata) to show the room data of calling object, int volume(int I, int w, int h)function should receive the length, width and height values from the objects one by one andreturn the volumes of the three objects respectively.Write a main program to declare the three object rl, 12, and 13 of room class. Two objectwill store the values through three argument constructor and third object will get the datafrom user by calling getdata function. Then all three objects should call the volumefunctions to calculate their volumes and store them in three variables of type integer. Finallythe system compare the three volumes values…
A new class safe member that would allow us to export a reference to a member Suggest a simple scheme for creating a new class SafeMember that would allow us to export a reference to a Member. The classes outside the system should be unaware of this additional class, and access the reference like a reference to a Member object. However, the reference would not allow the integrity of the data to be compromised. Remember that when designing the “Return Book with fines” use case, Member object is returned to the UserInterface to be able to display the member information such as owed fine. But this also means that the UserInterface can access all the Member methods. Your implementation of SafeMember class should prevent this.
Adhere to the following additional requirements: Each of the 6 classes will have exactly 2 constructors. Every class will have a getSpecies() function. We won't be declaring objects of type "Creature" or "Demon", but you should include getSpecies() functions for them anyway, and they should return "Creature" and "Demon", respectively. Make getSpecies() a public member instead of private. Each of the 5 derived classes will have exactly 4 member functions (including constructors) and no data members The Creature class will have 8 member functions (including 2 constructors, 2 accessors, and 2 mutators) and 2 data members. Do not use the "protected" keyword. Many computer programmers consider it to be poor practice because only the base class itself should have uncontrolled access to that data. The derived classes can access the data members through accessors and mutators. In the non-default constructors for the sub-classes, you will need to use initializer lists. The Creature class's…