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- Please help solve this with java i posted it before and got rejected :( Modify the Show class such that it implements the Comparable interface of java.lang. Remember to add the concrete type Show between <> when you implement Comparable. Note the syntax error that occurs and understand why it occurs. 2. Implement (override) the compareTo method in the Show class such that it compares the showsaccording to their rates: returns 1 if the first show’s rate is greater than the second, -1if the first show’s rate is less than the second, and 0 if they are equal. (First show is “this”, second show is o) 3. Define an interface named Ratable, that has the method updateRate as shown in the UML diagram, in a file named Ratable.java. 4. Modify the Show class such that it implements the Ratable interface. Note the syntax error that occurs in the updateRate method and understand why it occurs. 5. Modify the updateRate method in the Show class such that it returns a double value that represents…This discussion assignment examines variable scope. For this assignment, we will be examining the Beverage2 class (an updated version of the Beverage class from discussion 1), its subclass Espresso, and the TestBeverage2 class. This time, assume that all source files are in the same package. Note that some lines may wrap, but are still considered on one line. Examine the code below. Recall that variables have four kinds of scope: static, instance, local, and block. For each variable listed below, identify its scope (static, instance, local, or block) and describe the scope using complete sentences. An example description is provided, after the code listing, for the ounces variable in the Beverage2 class. Please describe the scope for the following variables: The num variable in the Beverage2 class The price variable in the Beverage2 class The shots variable in the Espresso class The b variable in the TestBeverage2 class The j variable in the TestBeverage2 class public abstract…B elow for each class you find a UML and description of the public interface. Implementing the public interface as described is madatory. There's freedom on how to implement these classes.The private properties and private methods are under your control.. There are multiple ways of implementing all these classes. Feel free to add private properties and methods. For each object, it's mandatory to create a header file (.h), implementation file (.cpp) and a driver. Blank files are included. The header should have the class definition in it. The implementation file should contain the implementations of the methods laid out in the header fine. And finally the Driver should test/demonstrate all the features of the class. It's best to develop the driver as the class is being written. Check each section to see if there are added additional requirements for the driver. Two test suites are included so that work can be checked. It's important to implement the drivers to test and demonstrate…
- Must be written in Python. Please include docstring and show how output should look like. Remember that all data members should be private. An object can access it's own private data members directly. It can also access the private data members of other objects of the same class directly. But when accessing a private data member of an object of another class, it needs to call the appropriate get method. If that sounds complicated, just remember this: if a method is in the same class as a private data member, then it can access that data member directly, otherwise, it needs to use a get method. Write a class named Point that has two data members, x_coord and y_coord, representing the two coordinates of the point. It should have: an init method that takes two arguments, an x-coordinate and y-coordinate (in that order), and uses them to initialize the two data members. get methods for the two data members: get_x_coord and get_y_coord. a method named distance_to that takes a Point object…Explain Write Back Method?Implement the following tasks by using concepts of object-oriented programming (Java). i. Create a generic class with a type parameter that simulates drawing an item at random out of a box. This class could be used for simulating a random drawing. For example, the box might contain Strings representing names written on a slip of paper, or the box might contain Integers representing a random drawing for a lottery based on numeric lottery picks. Create an add method that allows the user of the class to add an object of the specified type along with an isEmpty method that determines whether or not the box is empty. Finally, your class should have a drawItem method that randomly selects an object from the box and returns it. If the user attempts to drawn an item out of an empty box, return null. Write a main method that tests your class.ii. The following is a short snippet of code that simulates rolling a 6-sided dice 100 times. There is an equal chance of rolling any digit from 1 to…
- Please assist with non graded problem. Create a Calculator class that implements sum, subtraction, multiplication, and division operations, and throws an appropriate exception whenever the user attempts to perform a division by zero. Then develop a graphical interface (with JavaFx) for your calculator using TextField, Button, and Label objects, or any other graphical objects you like. Graphically display division by zero errors.Redefine the equals method of the class Date (Display 4.13) so that it hasa parameter of type Object and follows the other guidelines we gave for anequals method. (Remember, you should use getClass(), not instanceof.)USE PYTHON PROGRAMMING. The expected outputs seen in the screenshot must be achieved. (Not working = Thumbs Down) You must use the code template below. You cannot modify the class or its methods. You are only allowed to add lines of code to the main part of the program. Thank you. import ast class WeightedQuickUnion: def __init__(self, size: int) -> None: """ Initializes the union-find ds size: number of elements to initialize """ self.size = size self.parent = [-1]*self.size # create a list where all elements are roots self.group_size = [1]*self.size # create separate list to indicate the size for each element # (useful for knowing the size in root's perspective) def __str__(self) -> str: return f"parent: {self.parent}\nsize: {self.group_size}\n" def get_root(self, p: int) -> int: """Find the root of p""" idx = p while self.parent[idx] >= 0:…
- The owner of a venue for events needs software to keep track of reservations. The venue can handle two events in a day, one scheduled for the afternoon and another scheduled for the evening. Each event consists of the type (wedding, bar mitzvah, etc.), the date of the event, and whether or not the event will be held in the evening. A programmer writes the code given on the handout. import java.util.LinkedList; class Event { // wedding, etc. String type; Date date; boolean isEvening; // true if the event is to be held in the evening public Event(string type, Date date, boolean isEvening) { this.type - type; this.date = date; this.isEvening = isEvening; } class Date { string month; int day; int year; public Date(string month, int day, int year) { this.month = month; this.day = day; this.year = year; class Reservations { LinkedList events; public Reservations() { this.events = new LinkedList(); // adds the given event to the events list, as long as there is no // date/time conflict with…You are to implement removeHead, and removeTail and you also have to create the following functions (for visual purposes of the detail explanation, header and trailer sentinels are described as h and t respectively): IMPORTANT NOTE: For all the methods that has the pos parameter i.e. addAt, removeAt, move, make sure to access that specified position from whichever is nearer - the head or the tail - similar to what we have done in the get method. Example DoublyLinkedList: h <-> 10 <-> 30 <-> 40 <-> 50 <-> t int add(int num) This will add the element num into the last element of the linked list and return the position of the newly-added element. In the above example, having add(60) will return 5 as it is the fifth position in the list. int remove(int num) This will remove the first instance of the element and return the position of the removed element. In the above example, having remove(40) will return 3 as 40 was the third element in the linked list…Convert the OrderedPair class, which is provided below, into a templated class. Note that it will only work with types that have the operators + and < and << overloaded. But you should be able to try your templated class out with types string, MyString, double, FeetInches, Fraction, etc. I would encourage you to try these out. Also, create a programmer-defined exception class named "DuplicateMemberError" and add an if statement to each of the two mutators to throw this exception if the precondition has not been met. The precondition is given as a comment in the header file. Notice that you can test your exception handling by entering the same number twice when prompted for two numbers. Put your class in a namespace named "cs_pairs" Finally, to show that your class will work with different types, and also to show that you know how to code a client that uses the templated class, modify the given client file so that it uses your class using int as the type parameter, and then, in…