A A Java class can contain O Variables O Methods, Constructors Inner Classes (A class inside another class) O All the above
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Q: Write a Java class
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- Hand-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.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.Create a class student and then create an object of this class and work with it. Idfirst namelast namegradesdate of birthfield of studyenrolled coursesenrolled semester using constructors, setters-getters in JAVA programmingID must be generated
- In Java, a class can only inherit from one other ------- . A class can, however, extend many ----------.Implement all the classes using Java programming language from the given UML Class diagram. Note: This problem requires you to submit just two classes: Circle.java, Circle.java, Rectangle.java, Square.java. Do NOT include "public static void main()" method inside all of these classes. Write a superclass called Shape (as shown in the class diagram), which contains: Two instance variables color (String) and filled (boolean). Two constructors: a no-arg (no-argument) constructor that initializes the color to "green" and filled to true, and a constructor that initializes the color and filled to the given values. Getter and setter for all the instance variables. By convention, the getter for a boolean variable xxx is called isXXX() (instead of getXxx() for all the other types). A toString() method that returns "A Shape with color of xxx and filled/Not filled". Write a test program to test all the methods defined in Shape. Write two subclasses of Shape called Circle and Rectangle, as…Create a complete Java class that can be used to create a Computer object as described below:A Computer has a:- Manufacturer- Disk Size- Manufacturing Date- Number of coresa) Add all instance variables (data encapsulation is expected).b) The class must have getters and setters for all instance variables.c) The class must have two constructors: a no-arg constructor and a constructor thatreceives input parameters for each instance variable.d) Implement a toString() method for your class.
- Write classes that will extend the given Animal class and optionally implement a leg count interface. (Image attached below, use Java) abstract class Animal { String FUR="fur"; String FEATHER = "feather"; String SCALE = "scale"; String SHELL = "shell"; String SKIN = "skin"; abstract String getCovering( ); abstract void makeSound ( ); abstract boolean canFly( ); } You will need to write: Classes for the animals mentioned above A leg count interface Main method to demonstrate that all of your classes workJAVA PROGRAMMING MAKE A PROGRAM. Given the diagram in the attached photo, Employee is a super class with subclasses HourlyEmployee, SalariedEmployee and CommissionEmployee. Each of the class has getters, setters, toString, appropriate constructors and have overriden the computeSalary method.Do the following program in Java Eclipse. Java Class that can be used to create a Fruit object as described below: A fruit has - a: - Date of Harvest -Color -Weight -Number of seeds 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 and a constructor that receives input for each instance variables. d. The parent class is abstract. e. its 1 abstract method and has toString() method f. its 2 children (concrete) also have toString() methods.
- IntArray is a Java class that contains a single instance variable int[] numbers; In IntArray we wish to override the method Object equals(Object obj) of the Object Implement equals below with the usual meaning for equality (objects are of the same type with equal instance data). Think before you write any code.In Java Use inheritance to create the class PassengerPlane. An object of this class includes a model, range, and number of seats. Include a constructor, the appropriate get and set method(s), and a toString method that returns a string containing the model, range, and number of seats for the plan.write program in java Design an abstract class GeometricObject. GeometricObject must ensure that its children must implement calcArea() method. Design RectangleYourRegNo and CircleYourName Classes as children of GeometricObject class with overridden toString() method to return “Rectangle with w Width and h Height is drawn” OR “Circle with r Radius is drawn”. The attributes of Rectangle are length, width. The attribute of Circle is radius Hint: Area of circle=πr2 , Area of rectangle= width*length