Create a UML sequence diagram that will show your clients how the system’s classes will interact when customers are buying their flight tickets on the booking website.

Q: True/False 8. A developer should use either top-down or spiral design, but not both.

A: A developer can use both top-down or spiral design or any one of them. At different phases he can…

Q: build a UML Diagram for the Pet class as demonstrated by Tony Gladdis in the Pet Class Problem.…

A:

Q: Each account should have a constant, unique id. Id numbers should start from 1000 and increment by…

A: The requirement states that each account should have a unique ID that starts from 1000 and…

Q: Program the employee class as indicated in the diagram Your company has 7 employees and you would…

A: Answer:

Q: While using an interface, how do you benefit? Why not just make instances of the relevant classes…

A: All classes must adhere to the behaviour defined by interfaces. The benefits of interfaces and…

Q: Create the classes as shown in the UML diagram which I have added a picture of. Note that for Item…

A: A class is a user-defined data type that contains the data members and member functions. The data…

Q: The attributes field of an object may hold information. The properties of the class are unique to…

A: A data object's properties are defined by its attributes. The attribute is a quality or feature that…

Q: Data may be stored in the attributes field of objects. The class's characteristics are the class's…

A: A class is a blueprint of an entity/object you want to work on in your program. It is what exists on…

Q: There are many different types of companies out there so trying to make one class that fits them all…

A: Answer:  First of all complete the 'Company' class in the 'Company.java' file - Company.java follow…

Q: For the ER below, a Student must take at least one class. SID Student DOB Name M mi takes grade…

A: Here m:n relatioship is shown in the diagram, which mean more than 1 student can be taking more than…

Q: For each description, identify the passing method as pass-by-value or pass-by-reference: Description…

A: Below are the answers with explanation:

Q: The attributes field of objects is a potential storage location for data. The qualities of the class…

A:

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: In a diagram, what icon is used to show the state of a selection structure?

A: In computer science, selection structures are essential programming constructs used to make…

Q: While using an interface, how do you benefit? Why not just make instances of the relevant classes…

A: INTRODUCTION: The following are some advantages of including a UI in your programme: The capacity…

Q: What design pattern should be used when one part of an application creates data for another part to…

A: The Observer design pattern is a good choice when one part of an application creates data for…

Q: Data may be stored in the attributes field of objects. The class's characteristics are the class's…

A: Yes, they can. anything can be a field   A class attribute is a variable that belongs to a certain…

Q: 1. Input(): Ask user to provide values for color and fuel. Default values for speed is “0” and state…

A: the code is an given below : import java.util.Scanner;   public class Vehicle {     Scanner sc; //…

Q: several forms of testing should be carried out for an online application Load testing Capacity…

A: Introduction: The app is tested to see if it can be downloaded, executed, and interacted with the…

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: