O The way in a subclass has the same name and kind of signatures as a process in the superclass where the method in the subclass overrides the means in the .superclass
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- -Interface IResearch Scholar has two methods public void teaches (String str) and public void studies (String str). - Define classes JuniorRS and SeniorRs such that JuniorRS implements IResearchScholar and SeniorRS extends JuniorRS. - Class InterAbstrTest extends SeniorRS, and has the main method. An object of JuniorRs invokes the method studies, and an object of SeniorRS invokes methods studies and teaches.Books can come in various formats, like paper books, audio books, ebooks, etc. Create a generic classBook that has as common attributes the title, the year of publication, and the author. The constructor of thisclass should instantiate all three attributes. Override the toString method of class Book that returns a stringthat contains the values of its attributes. Create a subclass PrintBook that extends Book with attributesPublisher and ISBN. Create another subclass AudioBook which has the book’s size (in MB), its playlength and the playback artist’s name as attributes. Both PrintBook and AudioBook classes override thetoString method inherited from Book. Write a Java application to demonstrate the usage of this hierarchy.Computer ScienceQuestion: Draw a sequence diagram to illustrate the interaction that takes place between the Client, the TumbleDryer and Bosch objects, and System.out when the describe() message is sent. You will need to read through the code of the TumbleDryer and Bosch classes to trace the sequence. The sequence diagram should be in this format like the diagram below. Client Class public class Client { public static void main(String[] args) { Implementation impl1 = new Bosch(); Appliance apl1 = new TumbleDryer(impl1); apl1.describe(); } } Appliance Class public abstract class Appliance { Implementation impl; public Appliance(Implementation impl) { this.impl = impl; } public abstract void describe(); } Washing Machine Class public class WashingMachine extends Appliance { public WashingMachine(Implementation impl) { super(impl); } public void describe() { System.out.println("Washing Machine");…
- import bridges.base.ColorGrid;import bridges.base.Color;public abstract class Mark {// this is protected (rather than private) so that// subclasses of Mark can access itprotected Color color;/*Returns true if and only if the given Coloris the same as this Mark's Color. Two Colorsare considered the same if their Red, Green,Blue, and Alpha components are equal.c: the Color to check against*/public boolean isColor(Color c) {return false;}/*Draws this Mark onto the given ColorGridcg: the ColorGrid to draw onto*/public abstract void draw(ColorGrid cg);} import bridges.base.Color;import org.junit.Assert;import org.junit.Test;public class MarkTest {private static final Color B = new Color("black");private static final Color W = new Color("white");private static final Color U = new Color("blue");@Testpublic void isColorTest() {Mark m1 = new Point(0, 0, W);Mark m2 = new HorizontalLine(1, 1, 2,…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…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…
- 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…In a "has-a" relationship, an object of a subclass also can be tread as an object of its superclass. True False• Create two subclasses for checking and saving accounts.A checking account has an overdraft limit, but a savings account cannot be overdrawn. Draw the UML diagram for the classes and then implement them. Write a test program that creates objects of Account, SavingsAccount, and CheckingAccount and invokes their toString() methods.
- nheritance in object-oriented modelling can be used to a. Specialize classes b. Generalize and specialize classes c. Generalize classes d. Create newclassesa. Can a faculty member work in more than one department at the same time? Explain. b. Can a faculty member work in two departments at the same time, where one department is in the college of business and other department is in the college of arts and sciences? Explain. c. If faculty member is a superclass, what possible subclass do we have? Explain.Task: Implement a class ChessPiece with properties: color, isAlive, moveCount, and position (x, y coordinates). Define an abstract move method. Create a Tower subclass that overrides move for specific behavior. Instructions: ChessPiece Class: Properties: String color, boolean isAlive, int moveCount, Position position. Abstract Method: move(int x, int y). Position Class: Contains int x, int y. Tower Subclass: Extends ChessPiece. Overrides move for straight line movement. Deliverable: Source code for ChessPiece, Position, and Tower. Document class functionalities briefly.