Service class, and calls its compute() method to do mathematical calculations. Because the computation takes time, it is better to first prompt a waiting message, which was not yet provided, to inform the user. However, the Service class is also used by other internal classes that do not need the message. Therefore, your job is to come out a way to provide the message without modifying the association relationship and the code of the Service class. What design pattern is a usefu

Q: In a class definition, is the body of any method definition ever part of the class interface?

A: No

Q: Design and implement java program for " Covenant System"; the system stores a covenant name, type…

A: Design and implement java program for " Covenant System". Also submit UML class diagram.

Q: A class type cast can be used to force an object reference to be converted nto another object…

A: type cast is process of converting one type into another type. It could be implicit or explicit

Q: roblem Description: ou are hired to build a software for a new Computer Science (CS) department, or…

A: Hello sir

Q: Object Oriented Analysis and Design. Look at the problem described below and describe how you would…

A: Answer: I have given answered in the handwritten format.

Q: in c# Part 1: Use UML class diagrams to model your inventory item class. Part 2: Implement the…

A: Answer :  question was incomplete and i attempting the answer with experience on subject knowledge…

Q: When dealing with objects inherited from other classes, when does explicit casting need to be used?

A: Explanation: Give an example of when it is required to utilise explicit casting when dealing with…

Q: For this problem you are to join the following classes into a hierarchy (use the UML diagrams from…

A: Introduction Super Class: In object-oriented programming, a superclass is a class that is inherited…

Q: An unspecified data type can be used for both the parameters and the return type just for abstract…

A: All variables  must have a data type. So option 1,3, and 4 are incorrect

Q: Design and implement a class called Bug, which represents a bug moving along a horizontal wire. The…

A: ANSWER : JAVA CODE : // Implement a class class Bug { private int location; private String path;…

Q: Select the class relatio scenario: • Class A accepts an methods. Class A then uses c

A: In inheritance we can extends another class and use all of its features i.e. methods inside that…

Q: If a class is declared abstract, why would someone do that? How can interfaces assist you in…

A: Lets see the solution.

Q: How are instances of a given class's objects made if the class in question does not include a method…

A: Definition: Within the realm of object-oriented programming, a "object" is an abstract data type…

Q: By inheriting from an abstract class, a subclass is obligated to implement each and every one of its…

A: The term "abstract class" refers to a class that has been defined using the "abstract" keyword. It…

Q: To implement an interface, a concrete class must implement AT LEAST ONE of the method headers…

A: A concrete class is one in which all of its methods have been implemented. They can't have any…

Q: Design and implement a class called Bug, which represents a bug moving along a horizontal wire. The…

A: JAVA CODE : // Implement a class class Bug { private int location; private String path; public…

Q: A whole-part connection or composition occurs when a class contains objects of another class. The…

A: Composition: Composition is a fundamental notion of Object-Oriented Programming in which classes…

Q: Using c++ Design a Wacky class that can be used to generate a message based on the information…

A: This program uses the concept of constructor overloading which means There would be more than one…

Q: Which of these statements IS NOT true regarding design by contract.   Question options:   Creating…

A: Thе question is asking which of the following statеmеnts is NOT truе rеgarding dеsign by contract.…

Q: In a "has-a" relationship, an object of a subclass also can be tread as an object of its superclass.…

A: The Answer is in step2

Q: For the order system with two classes Customer and Order: • Draw a UML class diagram that shows the…

A: We have to write the given data in UML diagram

Q: True or False?  A composition association relationship connects a Student class with a Schedule…

A: We need to find the correct option regarding the composition association relationship.

Q: Design a class named Point that meets the following requirements: Two data fields x and y for…

A: Start. Define a Point class with x and y integer fields, and constructor methods for setting values…

Q: ach class member (fields and methods) have an accessibility (for example, public Select each the…

A: abstract, final, interface, protected, public. There are modifiers allowed to inherit all the…

Q: Imagine you have a call center with three levels of employees: respondent, manager, and director. An…

A: These particular functions are profile specific since the task that each of the three grades of…

Q: You need a method of protecting class fields against unintended corruption.

A: Yes We need of protecting class fields against unintentded corruption

Q: Computer Science There are clearly some similarities in the implementations of Taxi and Shuttle…

A: Introduction: In this assessment, we are given a task to implement inheritance in the implementation…

Q: For the order system with two classes Customer and Order: • Draw a UML class diagram that shows the…

A: NOTE: Based on our rules, when multiple questions are posted, we should answer only the first…

Q: Define the Artist class with a constructor to initialize an artist's information and a print_info()…

A: Here I have created the class Artist with the init method where I have assigned the values to the…

Q: have to implement program that compares graduate students based on their ranks. The design of the…

A: Note: Since you have not provided the language name to write the code. So, I am using java language…

Q: The template method design pattern describes a protocol of communication between an abstract (base)…

A: Find the required answer with reason given as below :

Q: Consider the Speaker interface shown below: public interface Speaker {     public void speak(); }…

A: GIVEN: Create a Java program with 2 classes Human and Dog, both will implement the Speaker…

Q: a) implement GameController Class as Singleton and as the controller for MVC in Java.   b)…

A: Solution: a) Singleton pattern, as descrobed in the GoF book Design  Patterns,  is intended to be…

Q: Create an interface class Figure with two member variables dim1, dim2. Create a parametrized…

A: Given,  Figure is an interface class with two member variables dim1,dim2. area and perimeter are…

Q: Interfaces are used to define stronger is-a relationships because one class can inherit multiple…

A: A class is able to implement more than one interface, which contains default methods that have the…

Q: Suggest a simple scheme for creating a new class SafeMember that would allow us to export a…

A:

Q: A Person class has four attributes SSN, age, gender, and address. Normally, SSN and gender are not…

A: An explanation and class diagram are attached.

Q: What is the design pattern depicted in the diagram below? The intent of this design pattern is to…

A: A) Factory Method Design Pattern   Explanation: A Factory Pattern, also known as a Factory Method…

Q: For this portion of the assignment you will need to create the Employee class * based on the…

A: Actually, object is a instance of class.

Q: plement a custom Comparator for a class that already implements the Comparable interface. Provide…

A: In  software development, the need often arises to sort objects  based on specific criteria. When…

Q: For this problem you are to join the following classes into a hierarchy (use the UML diagrams from…

A: Joining classes into a hierarchy which refers to the one it is a way of organizing classes and…

Q: True or False? Because child classes in generalizations inherit the attributes, operations, and…

A: Answer: Generalization is the most common way of extricating shared qualities from two or more…