Convert the following UML diagram into the Java code. Write constructor for the given class. Create an instance of the class in a main method using a Demo class.
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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:
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- Change the Fraction class so that its instance variables (numerator and denominator) are hidden (i.e. private). Check that the client class (after this change) will now not compile. Why does it not compile? Provide the changes to the Fraction class and the TestFraction class such that the program can work with the private instance variables by implementing appropriate accessor and mutator methods. import java.util.Scanner;//test programpublic class testfraction{public static void main(String[] args) {//create a Scanner objectScanner in = new Scanner(System.in);//create new fractionFraction frac = new Fraction();//declare numerator and denominatorint n=1,d;System.out.print("Enter Fraction's Numerator: ");//input numeratorn = in.nextInt();System.out.print("Enter Fraction's Denominator: ");//input denominatord = in.nextInt();//loop execute until the numerator is negativewhile(n>=0){//call input with n and dfrac.input(n, d);//call displayfrac.display();System.out.print("Enter…answer for task 2 only the question also refers to some of the stuff on task 1 skip 1 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…Hand-write two Java classes, Car and Truck. They are bothsubclasses of Vehicle.a. A car has an additional instance variable, number of doors.b. A truck has an additional instance variable, number of axlesc. Write a constructor that requires input for the instance variables of each class(including registration number and owner name).d. Write getters and setters for all instance variables for both classes.
- Write a java program Write a class named Employee with name and salary as private data fields. Add a constructor with both parameters. Write a class named Manager which unherits the Employee class. Add an instance variable, named department, of type String and 15 private. Add a constructor in the subclass class and a toString () method that prints the manager's name, department, and salary [Hint: Add a tastanel) method in the super class as well]. Create objects of Manager and Employee dassCreate a class Course, which has one field: String courseName Create the constructor, accessor, and mutator for the class. Then, in the main method of this class, create an instance of the class with the name "CST1201". Write an equivalent while statement to replace the following for statement for (int i=2; i<100; i=i+2) { System.out.println(i); }Draw the UML diagram for the class and then implement the class. For more details about UML diagrams see the “UMLNotation.pdf” by Y. Daniel Liang, located in LabFiles folder. Discuss: Should the class Square have a main method? Use lab_02 as the name of this Java Application project.
- Java program Make a class Employee with a name and salary. Make a class Manager inherit from Employee. Add an instance variable, named department, of type String. Supply a method toString that prints the manager’s name, department, and salary. Make a class Executive inherit from Manager. Supply appropriate toString methods for all classes. Supply a test program that tests these classes and methods.Hi, this is a java programming question, I'll attach the image and type the question Implement the class diagram below (diagram attached) Create a new class called LibraryManagementService and implement the main method. Inside the main method:• Create the following book objects.o Title: Sherlock Homeso Author: Arthur Conan Doyleo Genre: Detective fictiono Title: Pride and Prejudiceo Author: Jane Austeno Genre: Fictiono Title: Anne of Green Gableso Author: Jane Eyreo Genre: Dramao Title: Leave it to PSmitho Author: P G Wodehouseo Genre: Comedyo Title: Angels and Demonso Author: Dan Browno Genre: Suspense• All titles are case insensitive (Sherlock Homes and SHERLOCK HOMES should refer to the same book)• By default, for all the books, isAvailable should be true• Implement the following methods in the Library class:o addBook() should take in a book object and should add it to the books array. For instance, if we create a 6th book object• Title: Jurassic Park• Author: Michael Crichton•…Question 14 papa.Write a Java class “ShoppingCart” and a Java tester class “ShoppingCartTestDrive” to implement the OOP class design: “ShoppingCart”. - Apply “Encapsulation” concept in your classes- Implement three methods addToCart(), removeFromCart(),checkOut() and print demo results to the screen Full explain this question and text typing work only We should answer our question within 2 hours takes more time then we will reduce Rating Dont ignore this line
- Implement a new class Contact :public Person I provided person.h you don't have to touch person.h just need help on contact.h class public person and private person please help meHand-write a complete Java class that can be usedto create a Car object as described below.a. A Vehicle has-a:i. Registration numberii. Owner nameiii. Priceiv. Year manufacturedb. Add all instance variablesc. The class must have getters and setters for all instance variablesd. The class must have two constructors, a no-args and a constructor that receivesinput parameters for each instance variable.FOR JAVA, PLEASE WRITE THE CODE IN 50 MINUTES ! ! ! Part I Create Philosopher and Pasta classes. Write proper attributes, constructors, and get&set methods required for the rest of the questions. Part II Create a method for allowing the Philosopher to eat the Pasta. Part III Create a method for allowing multiple Philosophers to eat the same Pasta at the same time. Part IV Test your methods with different parameters.