Explain how to limit the occurrences of coupling in the following systems.a) The public class variables minClassSize and maxClassSize exist in theCourseSection class. The university management changes this from time totime. These variables are accessed by several methods in the Student andRegistration classes.b) A user interface class imports a huge number of Java classes, includingdrawing images, creating Ul controls, and a variety of additional utility classes.b) A class named Address exists in a system. This class includes four publicvariables that represent various aspects of an address. Several distinctclasses, such as Person and Airport, control instances of this class by changingthe address properties directly. In addition, several methods specify anAddress as one of their parameters.

Coupling refers to the interdependencies of the classes which enhances the strength of coupling. If…

Answered: Explain how to limit the occurrences of…

Computer Networking: A Top-Down Approach (7th Edition)

7th Edition

ISBN:9780133594140

Author:James Kurose, Keith Ross

Publisher:James Kurose, Keith Ross

Chapter1: Computer Networks And The Internet

Section: Chapter Questions

Problem R1RQ: What is the difference between a host and an end system? List several different types of end...

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Class A is the parent class, while classes B and C are the subclasses of A. Both B and C contain several features and techniques that are equivalent to one another; nevertheless, the implementations of some of their methods are quite different between the two. Explain what kind of class A will be using logic; is it going to be a concrete class, an abstract class, or an interface?
Draw the following Class Structure as a (class digram): 1. NotificationSystem: This is the main class that manages the notification system. It has the following attributes and methods: - Attributes: - users: a list of User objects representing all the users registered in the system - tweets: a list of Tweet objects representing all the tweets posted in the system - Methods: - register_user(user): adds a new user to the system - post_tweet(user, message): posts a new tweet on behalf of a user - get_timeline(user): returns a list of tweets from all users that the specified user follows - get_mentions(user): returns a list of tweets that mention the specified user 2. User: This class represents a user in the system. It has the following attributes and methods: - Attributes: - username: a string representing the username of the user - followers: a list of User objects representing all users who follow this user - following: a list of User objects representing all…
Explore scenarios where you might need to implement a custom Comparator for a class that already implements the Comparable interface. Provide real-world examples for context.
After drawing the hierarchy, implement the classes by writing C# code foreach class. Then create objects of each class and call ALL methods onthese objects.
In Java!!!!!This is a multi-part question. Consider the following UML diagram on attached image: 1.Write Java classes corresponding to the UML diagram. 2. Write getters and setters for all classes 3. Write non-default constructors for each class that initializes all instance variables to values passed as arguments to the constructor 4. Write toString method for each class 5. Modify Vehicle class to maintain inventory (list of all vehicles created) and print the list. What variable(s) you need to add? What additional method(s) you need? What else needs to be modified in the Vehicle class? Do you need to modify any of the descendant classes and explain your answer (if not: why not; if yes, describe what changes). Vehicle {Abstract} manufacturer:String - color:String Car Truck TwoWheeler {Abstract} -numberOfDoors:int -numberOfAxels:int -passengerSeats:int -fuelType:String -fuelLevel:int -fuelType:String -numberOfSeats:int -fuelLevel:int Truck Motorcycle -numberOfAxels:int -fuelType:String…
Write the definition of classes and interfaces in the given diagram using following details: a) Interface shape has a method draw(). b) Override the method draw() in all subclasses. c) Define a non-abstract method fillColor() in Circle class. (I want the complete solution using the codes in bluej program also diagram) bluej java cood
5. Given the Java Point class (which contains two private variables x and y and constructors that allows creating a point object with known x and y values as well as other methods such as equals( ), toString( ) etc), (a). define a new class called Circle that contains private two variables: center which is a Point object from the Point class and radius which is of type double. The Circle class must have the following methods: (b). add a constructor which creates a circle object using a center point with x and y values and a radius as its parameters. (c). add a default constructor. ( (d). add an equals() method that can compare if any object is equal to a Circle object (two circle objects are equal if they have the same center point with the same radius). (e). add a toString() method that prints a Circle object with the center point and radius.
Assume the availability of an existing class, ICalculator , that models an integer arithmetic calculator and contains: an instance variable currentValue that stores the current int value of the calculator and can be accessed and modified by any subclass methods add , sub , mul , and div Each method in ICalculator receives an int argument and applies its operation to currentValue and returns the new value of currentValue . So, if currentValue has the value 8 and sub(6) is invoked then currentValue ends up with the value 2 , and 2 is returned. Write a public subclass, ICalculator2 , based on ICalculator . The class ICalculator2 has one additional method, negate , that receives no arguments. The effect of negate is to reverse the sign of currentValue . For example, if currentValue is zero, there is no change, if it is -22 then it becomes 22 , if it is 100 it becomes -100 . Furthermore negate returns the new value of currentValue Assume that variable…
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a:) Define a Polygon interface that has methods area() and perimeter(). b:) Then implement classes for Triangle, Quadrilateral, Pentagon, Hexagon, and Octagon, which implement this interface, with the obvious meanings for the area() and perimeter() methods. c:) Implement classes, IsoscelesTriangle, Equilateral-Triangle, Rectangle, and Square, which have the appropriate inheritance relationships. d:) Write a simple user interface, which allows users to create polygons of the various types, input their geometric dimensions, and then output their area and perimeter. e:) For extra effort, allow users to input polygons by specifying their vertex coordinates and be able to test if two such polygons are similar. using all a to e parts develop a program

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