1- Based on the UML shown below, Implement in Java the following inheritance hierarchy (the classes' description comes next): Disk -title: String -playTime: int // in minutes + Disk(title: String, playTime: int) + getTitle(): String + getPlayTime(): int + toString(): String 4 Audio Video -artist: String - director: String - tracksList: java.util.ArrayList - description: String + Audio(artist: String, title: String, play Time: int) + Video(director: String, description: String, title: String, playTime: int) + getArtitst(): String + getDirector(): String + getTracksList() + getDescription(): String + toString(): String + addTrack(name: String): void + removeTrack(name: String): void +toString(): String A. Disk class is characterized by a String attributes title and an integer playTime. This class has: A constructor that initializes all the attributes. • The getter and setter methods for the attributes. ● A to String() method that returns each data field at a line in the form: "Title: " + title + "\nPlay time: " + playTime;

1- Based on the UML shown below, Implement in Java the following inheritance hierarchy (the classes' description comes next): Disk -title: String -playTime: int // in minutes + Disk(title: String, playTime: int) + getTitle(): String + getPlayTime(): int + toString(): String 4 Audio Video -artist: String - director: String - tracksList: java.util.ArrayList - description: String + Audio(artist: String, title: String, play Time: int) + Video(director: String, description: String, title: String, playTime: int) + getArtitst(): String + getDirector(): String + getTracksList() + getDescription(): String + toString(): String + addTrack(name: String): void + removeTrack(name: String): void +toString(): String A. Disk class is characterized by a String attributes title and an integer playTime. This class has: A constructor that initializes all the attributes. • The getter and setter methods for the attributes. ● A to String() method that returns each data field at a line in the form: "Title: " + title + "\nPlay time: " + playTime;

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

See similar textbooks

Similar questions

Create a short program in Java which contains the below information: - Has one abstract and two regular classes - Has two interfaces (the two regular classes have to implement at least one interface - At least one regular class must implement both interfaces - The two classes have to extend the abstract class - The abstract class must have a method - At least one interface must have a method - At least two fields in each class, this includes the superclass - All fields are instantiated within the constructor
Please do it in JavaScript or C# 1) Design and implement the class structure for a drawing application. A drawing is made up of a canvas that contains a collection of three different shapes: circles, lines, and boxes. Each shape can be drawn by calling a Draw() method for that shape. The canvas class should also have a draw method that draws all of the shapes it contains. You don’t have to actually draw anything on a screen; you can simulate drawing by writing a message to the console.For example, the code snippet: canvas.Draw();Drawing a circle at...Drawing a line at...etc. (For each shape on the canvas) 2)(Bonus) Consider re-writing the above answer (#1) differently where the canvas does not contain the shapes, but is able to draw any of the three shapes passed to it. Re-design canvas.Draw() if you need to. Your main() program should ask for user input on what shape to draw. Ask once, draw, then exit.could produce something like the following output to the console:
Extend the ItemToPurchase class per the following specifications: Private fields string itemDescription - Initialized in default constructor to "none" Parameterized constructor to assign item name, item description, item price, and item quantity (default values of 0) Public member methods setDescription() mutator & getDescription() accessor printItemCost() - Outputs the item name followed by the quantity, price, and subtotal printItemDescription() - Outputs the item name and description Ex. of printItemCost() output: Bottled Water 10 @ $1 = $10 Ex. of printItemDescription() output: Bottled Water: Deer Park, 12 oz.
public class Cat extends Pet { private String breed; public void setBreed(String userBreed) { breed = userBreed; } public String getBreed() { return breed; }} public class Pet { protected String name; protected int age; public void setName(String userName) { name = userName; } public String getName() { return name; } public void setAge(int userAge) { age = userAge; } public int getAge() { return age; } public void printInfo() { System.out.println("Pet Information: "); System.out.println(" Name: " + name); System.out.println(" Age: " + age); } } import java.util.Scanner; public class PetInformation { public static void main(String[] args) { Scanner scnr = new Scanner(System.in); // create a generic Pet and a Cat Pet myPet = new Pet(); Cat myCat = new Cat(); // declare variables for pet and cat info String petName, catName, catBreed; int petAge,…
Java Programing Design class CarInLine, with the following specifications: The class has two instance variables: arrivalTime and DepartureTime, stored as integers. Define a constructor that accepts an integer as an argument representing the arrival time, in which you set the departure time to zero, marking the beginning of a simulation. Create an appropriate set and get methods for the two instance variables. Implement a method totalTime() that returns an integer value representing the time spent in the queue, as the difference between the departure time and the arrival time. Define ten queues, simulating the functionality of the process, increasing the number of cashiers from one, and collecting the average waiting time for each scenario. Each simulation will work with the same number of cars, which is considered 100. The maximum number of cashiers/toll booths is 10. Create the queue with link-based implementation. Create each queue with the corresponding number of cashiers,…
How to fix these erros LocalResource.java:153: error: LocalResource is not abstract and does not override abstract method getPay() in Person public class LocalResource extends Person { ^ LocalResource.java:160: error: incompatible types: String cannot be converted to int super(firstName, lastName, date); public class LocalResource extends Person { private static int idCounter = 0; private int id; private String sector; private String trn; public LocalResource(String firstName, String lastName, String trn, String date, String sector){ super(firstName, lastName, date); this.trn = trn; this.sector = sector; this.id = ++idCounter;} public String getSector() { return sector; } public void setSector(String sector) { this.sector = sector; } public int getId(){ return id; } public String getTRN(){ return Integer.toString(id +100000000); } public String getContact() { return "LocalResource#" +…
Can you please help me with this, its in java. Thank you. Write classes in an inheritance hierarchy Implement a polymorphic method Create an ArrayList object Use ArrayList methods For this, please design and write a Java program to keep track of various menu items. Your program will store, display and modify salads, sandwiches and frozen yogurts. Present the user with the following menu options: Actions: 1) Add a salad2) Add a sandwich3) Add a frozen yogurt4) Display an item5) Display all items6) Add a topping to an item9) QuitIf the user does not enter one of these options, then display:Sorry, <NUMBER> is not a valid option.Where <NUMBER> is the user's input. All menu items have the following: Name (String) Price (double) Topping (StringBuilder or StringBuffer of comma separated values) In addition to everything that a menu item has, a main dish (salad or sandwich) also has: Side (String) A salad also has: Dressing (String) A sandwich also has: Bread type…
In Python, #Create a basket class, which has a class/static attribute pricelist (string/float dictionary - you can hardcode this) #The constructor should set the name to the name passed as a parameter and initialise the contents (empty) #You should provide an addItem method taking product,quantity which adds this to the contents #and a getQuantity method taking a product, which returns the relevant quantity
Draw the UML class diagrams for the following classes: An abstract Java class called Person that has the following attributes: a String called idNumber a Date called dateOfBirth representing the date of birth. a String for name A class called VaccineRecord with the following attributes: an enum called type of VaccineType a Date called date a String called batchCode A class called Patient that extends the Person class and has the following attributes and behaviours: an ArrayList that contains VaccineRecord objects called vaccinationRecord a public method called vaccinate that takes a VaccineRecord with the following signature: public void vaccinate(VaccineRecord vaccineRecord); a public boolean method called isVaccinated that returns whether or not the Patient has had a vaccine. A MedicalPractitioner class that extends the Person class and has the following attributes and behaviours: a String called licenseCode a public method called vaccinatePatient that takes as a…
Java Program This assignment requires one project with two classes. Class Employee Class Employee- I will attach the code for this: //Import the required packages. import java.text.DecimalFormat; import java.text.NumberFormat; //Define the employee class. class Employee { //Define the data members. private String id, lastName, firstName; private int salary; //Create the constructor. public Employee(String id, String lastName, String firstName, int salary) { this.id = id; this.lastName = lastName; this.firstName = firstName; this.salary = salary; } //Define the getter methods. public String getId() { return id; } public String getLastName() { return lastName; } public String getFirstName() { return firstName; } public int getSalary() { return salary; } //Define the method to return the employee details. @Override public String toString() { //Use number format and decimal format //to…
Write a complete Java class that can be used to create a Fish object as described below: A Fish has-a: - name age - type favorite food a) Add all instance variables b) The class must have getters and setters for all instance variables c) The class must have two constructors: a no-args constructor and a constructor that receives all data fields as parameters d) The class must have a toString() e) Add a main method and create 2 Fishes using each of the constructors you created
Javascript Create an object, Gremlin, that extends the Monster interface and takes the same argument language. Gremlins inherits how a monster eats. Gremlins speaks differently. Gremlins replace each word in a sentence with its only known language, "gar". For example, if the sentence is "I like chicken", the speak() method will turn it into "gar gar gar". class Monster { constructor(language){ this.language = language; this.stomach = Array(); } // takes a food_item STRING and returns everything eaten so far ARRAY eat(food_item) { this.stomach.push(food_item); } // takes in a sentence STRING and returns the passed in sentence STRING with no change speak(sentence) { returnsentence; } }