QUESTION 3 Identify class name, attributes, operations, associations and create a UML clas diagram based on the following Java code. public class Propeller { public double thrust; public int mileage; } public class Engine { public double power; public int mileage; } public class Plane { public Propeller[ ] myPropellers; public Engine myEngine; public Plane( ) { myPropeller = new Propeller[2]; myPropeller[0] = new Propeller( ); myPropeller[1] = new Propeller( ); myEngine = new Engine( ); } } public class Pilot { public int flightHours; public void fly(Plane p) { } } public class FighterPilot extends Pilot { public int rank; }

QUESTION 3 Identify class name, attributes, operations, associations and create a UML clas diagram based on the following Java code. public class Propeller { public double thrust; public int mileage; } public class Engine { public double power; public int mileage; } public class Plane { public Propeller[ ] myPropellers; public Engine myEngine; public Plane( ) { myPropeller = new Propeller[2]; myPropeller[0] = new Propeller( ); myPropeller[1] = new Propeller( ); myEngine = new Engine( ); } } public class Pilot { public int flightHours; public void fly(Plane p) { } } public class FighterPilot extends Pilot { public int rank; }

EBK JAVA PROGRAMMING

9th Edition

ISBN:9781337671385

Author:FARRELL

Publisher:FARRELL

Chapter11: Advanced Inheritance Concepts

Section: Chapter Questions

Problem 3RQ

See similar textbooks

Similar questions

(Java) Make the 2 following classes: Employee.java EmployeeTest.java Copy and paste the below starter code into Employee.java: /** * Employee.java extends Person.java * @author * CIS 36B, Activity 11.1 */public class Employee extends Person { private static int numEmployees = 0; private double salary; private String title; /** * Default constructor for the * Employee class. Calls the * default constructor of the * superclass and also initializes * salary and title to default * values */ public Employee() { } /** * Multi-argument constructor for the * Employee class. Calls the * multi-argument constructor of the * superclass and also initializes * salary and title to the * specified values */ public Employee(String name, int age, String gender, Address a, double salary, String title) { } /** * Returns the annual salary * @return the salary */ public double…
Java Question - Based on code, which answer out of the choices "A, B, C, D, E" is correct. Question has one correct answer. Thank you. Part 2 - 10. Given the following code, which statement is true? class Water() { ... }class Juice() extends Water { ... }class Apple() { ... }class ApplePie() { Apple a1 = new Apple(); }class AppleJuice() { Apple a1 = new Apple(); Water w1 = newWater(); } A. Juice is a superclass and Water is a subclass.B. ApplePie is a superclass of Apple.C. ApplePie is a composite class that contains an instance of Apple class.D. AppleJuice is a superclass that contains an instance of Apple class and an instance of Water.E. Water is a composite class that contains an instance of Juice.5
Convert the UML class diagram above into a java code with the following conditions The methods in the Pet class are abstract. Create a class called test. The main() method in the test class should create three Cat objects and two Budgie The main() method should also create indirectly an object of the Pet class. Demonstrate polymorphism in your test
1). Write a java abstract class called Solid and you will derive two classes – Cylinder and Sphere – from Solid. The class Solid Member variables type whose data type is String. For example, the type could be sphere, cube, parallelepiped. 2). The methods should include: A default or null constructor A constructor that initializes the value of type Getters and Setters An abstract method to find volume whose signature is public abstract double findVolume(); An abstract method to find surface area whose signature is public abstract double findSurfaceArea() a toString method that returns a string like the following Solid Type: Sphere an equals method that returns true if two Solid objects have the same type and false otherwise. 3). The class Cylinder - Cylinder will extend Solid Member variables: Cylinder inherits type from Solid radius of type double height of type double Methods: a default or null constructor a constructor that initializes type, radius, and height. type will always…
1). Write a java abstract class called Solid and you will derive two classes – Cylinder and Sphere – from Solid. The class Solid Member variables type whose data type is String. For example, the type could be sphere, cube, parallelepiped. 2). The methods should include: A default or null constructor A constructor that initializes the value of type Getters and Setters An abstract method to find volume whose signature is public abstract double findVolume(); An abstract method to find surface area whose signature is public abstract double findSurfaceArea() a toString method that returns a string like the following Solid Type: Sphere an equals method that returns true if two Solid objects have the same type and false otherwise. 3). The class Cylinder - Cylinder will extend Solid Member variables: Cylinder inherits type from Solid radius of type double height of type double Methods: a default or null constructor a constructor that initializes type, radius, and height. type will always…
JAVA CODE PLS Air Conditioning Unit by CodeChum Admin Construct a class to represent an air conditioning (AC) unit containing the following attributes: brand - name of manufacturers like Samsung, LG, Carrier, etc. type - whether it is an inverter type or not power - represents the status of the AC unit whether it is turned on or not thermostat - levels go from 1 to 10 temperature - levels go from 16 to 30 (in .5 intervals) It should have two constructors - one default and another that is overloaded default constructor sets all the numerical values to the least value as described above sets power to off, and type to inverter sets brand to "AC Brand" prints "Default Constructor" overloaded constructor accepts brand and type as arguments everything else is set to the same values as in the default constructor prints "Overloaded Constructor" It should contain the following methods: power() - this is supposed to turn the AC on if it is off, and turn it off if it is on…
Java program: The class diagram with four classes Mammal, Human, Student and Doctor is given. The Mammal class is given as well. Write down the remaining classes as described in the class diagram. The fields and methods for each class is given in the attachment. //in Mammel.java Public interface Mammal{ public double hairColor(): } 1. Class Human: Fields: age(int), weight(double), height(double) Methods: getAge, getWeight, getHeight 2. Class Student: Fields: major (String), gpa (double), creditHours (int) methods: getMajor: returns major, getGpa: returns gpa, getYear: returns freshman, sophmore, junior, senior as determined by earned credit hours Freshman : less than 32 credit hours sophmore: at least 32 but less than 64 credit hours junior: at least 64 credit hours but less than 96 credit hours senior: at least 96 credit hours 3.Class Doctor: Fields: years(int), Speciality (String) methods: getYears: returns years, getSpeciality: returns speciality, getSalary: calculates…
Java programming Help us set up the student system! 2.a) Write an abstract class Student describing (students) (2 properties and 1 method)! (Be carefull when defining the method!) 2.b) Extend the Student class into three new classes that can be directly instantiated: UndergraduateStudend, PostgraduateStudent, FailedStudent (each should have one additional property)! 2.c) Use all appropriate classes in a special School class!
Select the pair that correctly completes this sentence. In Java we derive classes from the _?__ class. The derived class is called a __?__ class. parent and child main and child method and sub none of these
Write Java classes to solve the following problem: A company has two types of employees. These are called Exempt and NonExempt. Exempt means the employee is not eligible for overtime pay and is paid a fixed amount each pay period. NonExempt means the employee is paid by the hour and receives 1.5 times the hourly rate for hours worked over 40. Each Employee has an id number which is a string. They also have a name. Employee should be an abstract class with the member variables described in number 2. Employee should have an abstract method called findPay, a toString method, and it should implement the Comparable interface. Use alphabetical order of id number to determine less than, greater than, and equal to. The toString method should produce a string like the following: Emp: ID: 4590 Emp Name: Fred Jones Employee should have an equals method. Define two employees to be equal if they have the same name and the same id number. Provide accessor and mutators for Employee. NonExempt should…
Lab 8.1 Declare Card subclasses Consider using the following Card class. public class Card{ private String name; public Card() { name = ""; } public Card(String n) { name = n; } public String getName() { return name; } public boolean isExpired() { return false; } public String format() { return "Card holder: " + name; }} Use this class as a superclass to implement a hierarchy of related classes:Write declarations for each of the subclasses. For each subclass, supply private instance variables. Leave the bodies of the constructors and the format methods blank for now. Class Data IDCard ID number CallingCard Card number, PIN DriverLicesnse Expirationyear Important: DriverLicense is subclass of IDCard class Lab 8.2 Provide constructors for Card subclasses Implement constructors for each of the three subclasses. Each constructor should call the superclass constructor to set the name. Here is one example: public…
Please answer the following Java-related questions. a) a car class has an has-a relationship with the vehicle class: True or false? b) In java, when a subclass redefines a superclass by using the same signature (same name and same parameters) the subclass is said to overload that superclass method : True or false c) the variable that cannot be modified (cannot change its value) after being initialized is called.....