The term "polymorphism" means: O A method can have multiple return types. A class can have multiple names. The exact method that is called is determined by the object's type, not the variable's type. The exact method that is called is determined by the variable's type, not the object's type.
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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:
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- Define a class named Employee. This class should extend the Person class from the previous question. The class should have a constructor, which takes the name, age, employer (String) and salary (int) as parameters (in that order). The first two parameters should be passed to the constructor of the superclass and the value of the last two parameters should be stored in instance variables. The class should define the methods, getSalary which returns the salary of the employee and getEmployer which returns the name of the employer. Any methods from the previous question that need to be overridden should be overridden! Use super and instanceof as appropriate. I.e., for the following methods you should be able to call the method in the superclass for specific situations (e.g. the compareTo method in the superclass can be called if you receive anything other than an Employee, and this also holds for the equals method). The toString method only needs to append details and as such can also…Method,Field can be accessed from the same class to which they belong.In order for a derived class to override a method of the base class, you need to use the __ keyword in the method header of the base class. Question 7 options: extends override virtual base
- Problem (Online Address Book): Using classes, design an online address book to keep track of the names, addresses, phone numbers, and dates of birth of family members, close friends, and certain business associates. Define a class addressType that can store a street address, city, state, and ZIP code. Use the appropriate functions to print and store the address. Also, use constructors to automatically initialize the member variables. Define a class extPersonType using the class personType with following members and methods: firstname, lastname, and accessors and mutators, print to display, and constructors. Define a class dateType for month, day and year as members with its accessors, mutators, and constructors) Design a class addressType. Add a member variable to this class to classify the person as a family member, friend, or business associate. Also, add a member variable to store the phone number. Add (or override) the functions to print and store the appropriate information.…Complete the code for the Student class method called void loadStudent(...) that receives a single string parameter. This string parameter will contain student details in the following format: ’Name’,’Surname’,’Email’,’Age’,’Student Number’ Write the code to separate the string and assign the correct values to the Student class members. Create an overloaded > (greater than) operator in the Student class. The operator will compare the age of two student objects and return the object with the greater age. In main.cpp create a non member function named isFemale. This function will receive as parameter a pointer to a student object. If the last two numbers of the student number is valid numbers (Must be between 0 and 9) the function will return true. Otherwise the function will return false. Overload the default constructor for Student to receive a single string parameter. This string parameter will contain student details in the following format:…Class object method This program has three methods and two constructorsone constructor has one parameter and the other none The class has two primitive variables one static and the other notThe static member is initialized to greater than 0 the non-static to 0 Variables in two methods are assigned with the static member main() has an initialized variable with a value not the same as others in the program; it is used as the argument to one of the constructors; this value is used to assign a value to the static class variable The constructor that takes no argument has a variable declared with the same name as the static variable, it is initialize by the non-static variable A.Demonstrate and explain the displayed results of objects created in the following order Constructor(arg)Constructor() B.Create a second program to Demonstrate and explain Constructor()Constructor(arg) Iolecnotes Assignment 4. Write a program to create two files with the names file4 and file4a two 10 element int…
- Having trouble when I run this python program. I'm being told that the "Test Failed: 'Employee' object has no attribute 'get_name'" and "Test Failed: 'Employee' object has no attribute '_name'" The assignment is below, and my code is at the bottom. Please help me spot these errors and understand them. Thanks. Write a class named Employee that has **private** data members for an employee's name, ID_number, salary, and email_address. It should have an init method that takes four values and uses them to initialize the data members. It should have get methods named get_name, get_ID_number, get_salary, and get_email_address.Write a separate function (not part of the Employee class) named **make_employee_dict** that takes as parameters a list of names, a list of ID numbers, a list of salaries and a list of email addresses (which are all the same length). The function should take the first value of each list and use them to create an Employee object. It should do the same with the second…When the constructor of a class is invoked?Using C# Language: Programming PLO 3 Measured: Create control structures, methods with the appropriate parameters, and data structures of the appropriate type, and implement algorithms to solve problems. Design a class named Contractor. The class should keep the following information: Contractor name Contractor number Contractor start date Write one or more constructors and the appropriate accessor and mutator functions for the class. Write another class named Subcontractor that is derived from the Contractor class. The Subcontractor class should have member variables to hold the following information: Shift (an integer) Hourly pay rate (a double) The work is divided between two shifts, a day shift, and a night shift. The shift variable will hold an integer value representing the shift that the subcontractor will work. The day shift is 1 and the night shift is 2. Write one or more constructors and the appropriate accessor functions for the class. Demonstrate the classes…
- (Default Constructor) What’s a default constructor? How are an object’s data members initialized if a class has only an implicitly defined default constructor?Add comments as appropriate. Be sure that your program output is neatly presented to the user. Add documentation comments to your functions. You are going to change the class you created in Program7 so that it has a constructor and some properties. In your GeoPoint class make the following changes (note your variable, parameter and method names may be different. Adjust as needed.): Add a constructor __init__(self, lat=0, lon=0,description = ‘TBD’) that will initialize the class variables __lat ,__lon and the __description. Notice that the constructor will also default lat and lon to zero and description to ‘TBD’ if they are not provided. Change the SetPoint method so that instead of individual coordinates SetPoint(self, lat, lon) it takes a single sequence. Add a property: Point = property(GetPoint,SetPoint). Make sure GetPoint and SetPoint are the names you used for the get and set methods you already wrote for points. Add another property: Description = property(GetDescription,…When a class can be derived from another class and use its methods, this is called Polymorphism. A. True B. False