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- Write c# equivalent statements for the following: There is a book library. Define classes respectively for a library. The library must contain a name and a list of books (use array). The books only contain author name as information. In the class, which describes the library, create methods to add a book to the library, to search for a book by a predefined author, and to delete a book from the library. Write a test class, which creates an object of type library, adds several books to it. Implement a test functionality, which finds all books authored by Stephen King and deletes them. Finally, display information for each of the remaining books.Defining two or more methods within the same class with same name but different parameters list is called: a. Method overloading b. Method overriding c. Polymorphism d. Abstraction16. Create a class SubstitutionCipher that implements the interface MessageEncoder, as described in the previous exercise. The constructor should have one parameter called shift. Define the method encode so that each letter is shifted by the value in shift. For example, if shift is 3, a will be replaced by d, b will be replaced by e, c will be replaced by f, and so on. (Hint: You may wish to define a private method that shifts a single character.)
- !! E! 4 2 You are in process of writing a class definition for the class Book. It has three data attributes: book title, book author, and book publisher. The data attributes should be private. In Python, write an initializer method that will be part of your class definition. The attributes will be initialized with parameters that are passed to the method from the main program. Note: You do not need to write the entire class definition, only the initializer method lili lilıIn C++ Create a class called Pencil. Pencil has a type. Create another class called Customer. The customer class should have a ID number, array (using pointers) called purchases, and a Pencil variable. Make sure to create the purchases array in the constructor. Create a function to fill in purchase amount. Create a way to output all the information about a customer, including all the details about their type of pencil.Write in python. 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 value of each list, etc. to the end of the lists. As it creates these objects, it should add them to a dictionary, where the key is the ID number and the value for that key is the whole Employee object. The function should return the resulting dictionary.For example, it could be used like…
- Python Code: Write a class called Person with a constructor that takes two arguments, name and age and the saves these as attributes Write a method in this called print_person that prints out this information the console Confirm that you did it properly by instantiating an object called p1 and calling the method on the object. Lastly, extend the constructor by adding functionality that checks the input name only contains letters (no numbers allowed).# objected oriented programming in Python I need the solution of all below python question codes along with correct return. # 1. Implement a class named "MyClass"# This class should have:# * During instantiation of this class, the 'some_val' parameter should be set as# a variable with the same name in the instance# * Implement the method called 'plus_n' that takes one parameter (named 'n'), such that# it should return the sum of instance's 'some_val' variable and 'n'class MyClass: def __init__(self, some_val): # your code goes here instead of pass pass def plus_n(self, n): # your code goes here instead of pass pass ########################################################################################################################################################################################################################################## # 2. Given two classes 'Animal' and 'DigestiveSystem, implement, using COMPOSITION the method…Write in python and please include docstring. 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 value of each list, etc. to the end of the lists. As it creates these objects, it should add them to a dictionary, where the key is the ID number and the value for that key is the whole Employee object. The function should return the resulting dictionary. For example, it…
- Novice: How can i access a main class objects from outside the function? / Better Alternative? If i have 4 Student objects how can i print the information for the specific object given one parameter about the class, like the students Idnumber. What i came up with was making a checkId void function that takes the user input and runs an if else chain checking if the Id belongs to student 1-4 then printing the details of that classes object with the void function print. ideally i would want the if-else chain in the checkId function to call the print( student1-4) class object but im not sure how to properly do that. i dont think this is the best way to go about it, if you have any recommendations or alternatives please help me out.A. Writing an Interface In this problem you will first write an interface and then modify classes to implement the interface. Write an interface, GeometricSolid, which has one method, volume. The volume method takes no arguments and returns a double. You are provided with three classes: Cylinder, Sphere, and RightCircularCone Modify the classes so that they implement the GeometricSolid interface. Supply the appropriate method for each class. You can use Google search to find the formula for the volume. Make sure that you use Math.PI in your calculations. Notice in InterfaceRunner that the objects are added to an ArrayList of GeometricSolids. since I couldn't fit all images with two screen shots I left the link here link: https://codecheck.it/files/18040616319p6jy6gzkdzuq08nmlp81251tProblem No. 2 Write a Java class called ContainsInRange. This class defines a method called contains(), which takes as parameters an integer array a, an integer x, an int called start, as well as an int called end, and returns a boolean which is true if and only if x occurs in a at a position which is greater than or equal to start, and less than end. You must validate that start is less than or equal to end, and that both start and end are greater than or equal to 0, and less than or equal to a.length. Repeat the operation often. (please put also the code that the user can enter a value. Thank you)