Consider the code given below. #include using namespace std; class myclass { private: int x; public: myclass( ) { this->x=0; } void setX(int x) { this->x=x; int getX( ) const { return this->x; } } }; void main() { const myclass obj1; myclass obj2; obj1.setX(5); cout<
Q: An encapsulation violation occurs when private information that should not be changed by external…
A: The given feature Encapsulation is one of the most favorite features of Object-oriented programming…
Q: (Java) Make the 2 following classes: Employee.java EmployeeTest.java Copy and paste the below…
A: In Java, the most searching program is of employee details. An employee is an entity that can have…
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: Write a Java class Person for dealing with persons. Your class must have the following features:…
A: As per the requirement person class is developed. Note: As per our guidelines we are suppose to…
Q: It is not possible to call a superclass’s _ _init_ _ method from a subclass’s _ _init_ _ method.…
A: GIVEN: It is not possible to call a superclass’s _ _init_ _ method from a subclass’s _ _init_ _…
Q: Write a class named Person with data attributes for a person’s name, address, and telephone number.…
A: Python program for the above problem is given below:-
Q: Write a Java class Person for dealing with persons. Your class must have the following features:…
A: class Person{ long person_id; String name,gender; //default constructor Person(){…
Q: In Java a class is allowed to inherit from as many superclasses as needed. True False
A: Stating given statement is true/false with explanation. Given statement : In Java a class is allowed…
Q: Use myObj to access and print the value of the x attribute of MyClass. public class MyClass { int x…
A: Introduction: PROGRAMMING LANGUAGE: Java Use myObj to access and print the value of the x attribute…
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: True or false? A subclass is a subset of a superclass.
A: A subclass is a subset of a superclass. True or false?
Q: Create a generic class with a type parameter that simulates drawing an item randomly out of a box.…
A: box.add(new CustomComponents12()); box.add(Box.createVerticalGlue()); add(box); pack();…
Q: 1) Write an abstract class Vehicle - Data members: numWheels - Constructor: initialize numWheels -…
A: abstract class Vehicle{ private int numWheels; public Vehicle(int numWheels) {…
Q: When a subclass method has the same name, parameter list and return type as a method in the parent…
A: according to our guidelines we can answer only one question if you want answer of another question…
Q: Java program: 1. Write a superclass called Animal with the following: Private Fields:…
A: Animal.java ==================== public class Animal { //declaring variables private boolean…
Q: If class A is a subclass of class B, then A has access to all of B's instance variables, including…
A: Private data: A private data can be accesses within the class only. Private data not allowed to…
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: Consider the following Country class: public class Country{ String name; Integer population; Rewrite…
A: According to the information given:- We have to follow instruction mentioned to rewrite the class…
Q: Programming Launguage = Python 2. ShiftSupervisor Class In a particular factory, a shift…
A: class Shiftsupervisor:#Initialize the Shiftsupervisor attributes def __init__(self, salary,…
Q: A superclass has the following abstract method: 1 þublic abstract int getValue(); 2 Identify an…
A: A superclass has the following abstract method
Q: Declare a superclass and subclass. Override a method of superclass in subclass and call the…
A: If your job overrides one of its superclass's methods, you can invoke the overridden method through…
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: 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: Superclass methods with this level of access cannot be called from subclasses.
A: package
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: Consider the following Country class: public class Country{ String Integer population; } name;…
A: Java code snippet for City.java : //(ii) implementing Comparable interface class City implements…
Q: I need help with this problem. Define objects for the Donkey Pong game, e.g. Mario, Gorilla, Cask,…
A: The answer is as follows.
Q: Assignment: Write the class XXXX_Worker with constructors, accessors, mutuators, and a toString…
A: create XXXX_Worker class with instance data members as Worker Name and Number.declare constructors,…
Q: In the following there are two classes, Employee and Manager. Manager is a subclass of Employee. The…
A: Problem: In the following, there are two classes, Employee and Manager. Manager is a subclass of…
Q: 1. An abstract class called Pet is defined below: public abstract class Pet { private String id;…
A: Dear Student, As no programming language is mentioned I am assuming it to be Java. The Cat class…
Q: Write the abstract super class Transaction, and two of its subclasses, Payment and Sale (you do not…
A: public class Main { public static void main(String[] args) { /* * Instantiating Four…
Q: A class in Java may inherit only from one superclass, but may, in turn, have any number of…
A: A class in Java may inherit only from one superclass, but may, in turn, haveany number 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: When a concrete class inherits from an abstract class, you have to implement all abstract methods…
A: If we define any class an abstract class that means it contains some abstract or non abstract method…
Q: When a function Object() { [native code] } from a subset is invoked, the no-arg function Object() {…
A: When a function Object() { [native code] } from a subset is invoked, the no-arg function Object() {…
Q: When invoking a constructor from a subclass, its superclass’s no-arg constructor is always invoked.…
A: Answer 1 : False. If a subclass's constructor explicitly invoke a superclass's constructor, the…
Q: Write a Java operator/keyword, which can be used to check the validity of reference before…
A: Note-Since your question contain multiple question but we can answer only one at a time for you due…
Q: Draw a class diagram for the parking office class below. Diagram shoukd not be hand drawn. N.B…
A: The given problem has a Java program where the requirement is to analyse the given code and then…
Q: Make a class Person, with instance variable name, age, and gender. Make a class Employee inherit…
A: class Person{ String name; int age; String gender; public Person(String name, int age, String…
Q: An encapsulation violation occurs when private information that should not be changed by external…
A: Encapsulation in object-oriented programming usually known as binding the data altogether with the…
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: Write an abstract superclass encapsulating a student. This abstract superclass named Student has two…
A: Required Java code with Screenshot of sample output provided below :
Q: Write the abstract super class Transaction, and two of its subclasses, Payment and Sale (you do not…
A: Actually, constructor is a method which is used to initialize the object.
Q: When we extend a class, the subclass's constructor only needs to call the super () constructor if we…
A: I have answered this question in step 2.
Q: 8.1 Declare Card subclasses Consider using the following Card class. public class Card { private…
A: here i am providing answer for lab 8.1 kindly split remaining questions and repost them
Q: Create a program that exhibits inheritance. Software Requirements: • Latest version of NetBeans IDE…
A: Inheritance: One class acquiring the properties of another class is called inheritance. Types of…
Q: When a method in a subclass overrides a method in superclass, it is still possible to call the…
A: All the code is correct. Just add a super keyword before the method. Super keyword used to…
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:
Trending now
This is a popular solution!
Step by step
Solved in 2 steps
- JAVA Write the abstract super class Transaction, and two of its subclasses, Payment and Sale (you do not need to supply any comments other than your name). I. Write an abstract superclass encapsulating a Transaction: The Transaction super class has an instance variable representing the customers name, and 3 methods: an overloaded constructor, a toString() method that returns a message including the name of the customer, and an abstract method called calculateAmount()which will be implemented in your subclasses. II. Write a non-abstract subclass that inherits from the Transaction class encapsulating a Payment: The Payment class has instance variable representing the payment amount received and 3 methods. It has an overloaded constructor, a toString() method that returns a message including customers name, the name of the class Payment, and the payment amount, an non-abstract class called calculateAmount() which returns the payment amount. III. Write a…Declare a superclass and subclass. Override a method of superclass in subclass and call thesuperclass’s constructor from the subclass with proper java syntax.Write the abstract super class Transaction, and two of its subclasses, Payment and Sale (you do not need to supply any comments other than your name). I. Write an abstract superclass encapsulating a Transaction: The Transaction super class has an instance variable representing the customers name, and 3 methods: an overloaded constructor, a toString() method that returns a message including the name of the customer, and an abstract method called calculateAmount()which will be implemented in your subclasses. II. Write a non-abstract subclass that inherits from the Transaction class encapsulating a Payment: The Payment class has instance variable representing the payment amount received and 3 methods. It has an overloaded constructor, a toString() method that returns a message including customers name, the name of the class Payment, and the payment amount, an non-abstract class called calculateAmount() which returns the payment amount. III. Write a second…
- (Java) Make the 2 following classes: Employee.java EmployeeTest.java Copy and paste the below starter code into Employee.java: /** * Employee.java extends Person.java * @author * CIS 36B, Activity 11.1 */public class Employee extends Person { private static int numEmployees = 0; private double salary; private String title; /** * Default constructor for the * Employee class. Calls the * default constructor of the * superclass and also initializes * salary and title to default * values */ public Employee() { } /** * Multi-argument constructor for the * Employee class. Calls the * multi-argument constructor of the * superclass and also initializes * salary and title to the * specified values */ public Employee(String name, int age, String gender, Address a, double salary, String title) { } /** * Returns the annual salary * @return the salary */ public double…Write a java program in which Animal:Create a class Animal and Add a protected data member named id of integer type.• Add get/set methods for id data member in Animal class with public access. Also provide default constructor this should initialize id to 0.• Also provide parameterized constructor and toString method.• Add an abstract method tellAboutSelf method to Animal class with public access• Add another abstract method speak method to Animal class.Reptile, Bird, MammalNext create the three child classes which extends form Animal class.• Add a default constructor to each of the above created class. The constructor should initialize the id data member id, Reptile, Bird and Mammal, to 1, 2 and 3 respectively also it display a message “(class Name)’s default constructor”. E.g. for Bird it says “Bird’s default constructor”.• Add a parameterized constructor to each of the above created class. The constructor should initialize the id data member, Reptile, Bird and Mammal, to the…language: Java Class Inheritance with an abstract class Define a class Employee with the following fields: _name, _empId, _department, _position (_title), _yearlySalary, _fullTime (a boolean: true/false) , _month , _year (time of hire) Add constructor and properties Define an abstract method GetBiMonthlySalary() (if the employee is paid twice a month) Define an abstract method GetVacationTime() that returns the number of vacation time this employee would have based on time of hire Override the ToString() method to return a string that contains the information pertaining to an employee such as name, empId, department, and where full time or not. Define a class HourlyEmployee that inherits from Employee. This class should have 2 fields of its own: _hours (hours worked in half a month) and _wage (hourly wage) Provide necessary constructor, properties and methods Override the ToString() to also return the additional fields Gets 3 days of vacation after first year if the…
- Person and Customer Classes Write a class named (Person) with data attributes for a person’s name, address, and telephone number. Provide accessors/getters and mutators/setters for each attribute. Write a displayPerson() to print out the attributes of the Person. Next, write a class named (Customer) that is a subclass of the (Person) class. The (Customer) class should have a data attribute for a customer number, and a Boolean data attribute indicating whether the customer wishes to be on a mailing list. Provide accessors/getters and mutators/setters for each attribute. Write a display customer() to print out the attributes of the Customer. Demonstrate an instance of the (Customer) class in a simple program.True or False A subclass can override methods from its superclass.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. Note: use OOP Concepts with C++ language Solve as soon as possible
- Programming Launguage = Python 2. ShiftSupervisor Class In a particular factory, a shift supervisor is a salaried employee who supervises a shift. In addition to a salary, the shift supervisor earns a yearly bonus when his or her shift meets production goals. Write a ShiftSupervisor class that is a subclass of the Employee class you created in Programming Exercise 1. The ShiftSupervisor class should keep a data attribute for the annual salary and a data attribute for the annual production bonus that a shift supervisor has earned. Demonstrate the class by writing a program that uses a ShiftSupervisor object. Sample Output Enter the name: John Smith Enter the ID number: 234 Enter the annual salary: 100000 Enter the bonus: 10000 Shift supervisor worker information: Name: John Smith ID number: 234 Annual Salary: $100,000.00 Annual Production Bonus: $10,000.00 Combined Annual Pay: $110,000.00 NOTE: Add new calculation.(JAVA) Create a class hierarchy to represent the different types of employees in an office who have the following job titles: manager, assistant, salesperson. Write an abstract base class called Employee that declares an abstract method: signature double calculateSalary() This class must also define the following attributes: name (String type), enrollment (String type) and base_salary (double type). Use encapsulation and provide a constructor that receives the corresponding values to be stored in the respective attributes. This abstract class must be extended by the other classes representing the types of employees, so the classes Manager, Assistant and Salesperson must be written. In each class you must override the method calculateSalario so that the salary calculation is done like this: The manager receives twice the base_salary, the assistant receives the base_salary and the salesperson receives the base_salary plus a commission defined in the constructor of his class. Create a…C++ Language Please Write a program that implements four classes: NPC, Flying, Walking, and Generic for a fantasy roleplaying game. Each class should have the following attributes and methods: NPC -a parent class that defines methods and an attribute common to all non-player characters (npc) in the game. a private string variable named name, for storing the name of the npc. a default constructor for setting name to "placeholder". an overloaded constructor that sets name to a string argument passed to it. setName - a mutator for updating the name attribute getName - an accessor for returning the npc name printStats - a pure virtual function that will be overridden by each NPC subclass. Flying - a subclass of NPC that defines a flying npc in the game a private int variable named flightSpeed for tracking the speed of the npc. a default constructor for setting flightSpeed to 0 and name to "Flying" using setName. setFlightSpeed - a mutator that accepts an integer as it's only argument…