This way, any class that implements the Visible interface can define its own behavior for making an object visible or invisible based on its specific requirements. Create a Priority Java interface with two methods: setPriority and getPriority. The interface should define a method for assigning numerical priority to a group of objects. Create a class named Task that represents a task (such as one on a to-do list) that implements the Priority interface. Make a driver class to test certain Task objects.

I'm learning java in college and I missed one homework assignment. Since then it has been difficult to keep up with homework because they were based on the one I missed. Here's the prompt: Design a class Phone with one data member as long phoneNumber. Add constructors, get/set methods to class Phone. Then design a class InternationalPhone as subclass of class Phone, with one extra data member as int countryCode. Add constructors, get/set methods to class InternationalPhone. Write a main program to test these two classes. (We use netbeans btw) I can't get any credit for this so there's no rush but I would be very happy to recieve an answer before the end of the semester. Thank you in advance :)

B elow for each class you find a UML and description of the public interface. Implementing the public interface as described is madatory. There's freedom on how to implement these classes.The private properties and private methods are under your control.. There are multiple ways of implementing all these classes. Feel free to add private properties and methods. For each object, it's mandatory to create a header file (.h), implementation file (.cpp) and a driver. Blank files are included. The header should have the class definition in it. The implementation file should contain the implementations of the methods laid out in the header fine. And finally the Driver should test/demonstrate all the features of the class. It's best to develop the driver as the class is being written. Check each section to see if there are added additional requirements for the driver. Two test suites are included so that work can be checked. It's important to implement the drivers to test and demonstrate...

Create a subclass named Square from the superclass GeometricObject. Create an instance variable named width with initial value 0. Create a no-arg constructor. Create the another constructor, which has one parameter named wid. Assign the wid to the instance variable named width. Create the getWidth() method, the setWidth() method. Override the getArea() method. Override the getPerimeter() method. Create a test class named Test to create an instance with wid= 6 from Square class. Call the getArea() and getPermeter() methods to print out the area and perimeter of the square with width=6.

please answer with output

elow for each class you find a UML and description of the public interface. Implementing the public interface as described is madatory. There's freedom on how to implement these classes.The private properties and private methods are under your control.. There are multiple ways of implementing all these classes. Feel free to add private properties and methods. For each object, it's mandatory to create a header file (.h), implementation file (.cpp) and a driver. Blank files are included. The header should have the class definition in it. The implementation file should contain the implementations of the methods laid out in the header fine. And finally the Driver should test/demonstrate all the features of the class. It's best to develop the driver as the class is being written. Check each section to see if there are added additional requirements for the driver. Two test suites are included so that work can be checked. It's important to implement the drivers to test and demonstrate...

USING JAVA Write these: An interface called Shape that has two methods: area and perimeter. A class Rectangle that implements Shape and has a length and a width. A class Circle that implements Shape and has a radius. For each class, write the needed constructors, getters, setters, and a toString method that stringifies the instance variables in a readable format. Supply a test program that instantiates an instance of each class and exercises each method defined for the class.

Using JAVA Language Consider a Billing class that implements an interface Payable having a method getTotalPaymentAmount(). Besides this, you have a Doctor class with private instance variables (docID, docName, and docFee) and a public getDoc() method, Patient class with private instance variables (pName, pID, pDisease), Medicine class with private instance variables (medID, medName, medQty, medPrice), and MedicalTest class with private instance variables (testID, testName, testPrice). Each of these classes has the toString() method to display the information of its object. The Billing class is having "Has A" relationship with the other four classes (Doctor, Patient, Medicine, and MedicalTest) mentioned above. The getPaymentAmount() method of Billing class returns the total billing amount that includes doc fee, medicine cost, and medical test fee that a patient has to pay. After implementing these classes, you are required to do the following in the driver class: Create an ArrayList of...

Working With Java Classes Define a Java class as described below. All variables should be declared as private and all methods as public. Save the class definition in a file with an appropriate filename. Class Name: Family Instance Variables: numDependents - int (Fields) annualIncome - double Instance Methods: A constructor that accepts no arguments and sets the number of dependents field to 1 and the annual income field to zero. rate). A constructor that accepts 1 argument, an annual income amount and sets the number of dependents to1. A constructor that accept 2 arguments representing an initial value for each of the fields. Accessor/Getter Methods: (Use appropriate method names) dependents() A function to return the number of dependents. income() A function to return the annual income amount. Mutator/Setter Methods: (Use appropriate method names) dependents() A function that has an integer formal argument that is assigned to the number of dependents field. income() A function that...

Design and implement a set of classes that define the employees of a hospital: doctor, nurse, administrator, surgeon, receptionist, janitor, and so on. Include methods in each class that are named according to the services provided by that person and that print an appropriate message. Create a main driver class to instantiate and exercise several of the classes.

Create a UML class diagram of the application illustrating class hierarchy, collaboration, and the content of each class. There is only one class. There is a main method that calls four methods. I am not sure if I made the UML Class diagram correct. import java.util.Random; // import Random packageimport java.util.Scanner; // import Scanner Package public class SortArray{ // class name public static void main(String[] args) { //main method Scanner scanner = new Scanner(System.in); // creates object of the Scanner classint[] array = initializeArray(scanner); System.out.print("Array of randomly generated values: ");displayArray(array); // Prints unsorted array sortDescending(array); // sort the array in descending orderSystem.out.print("Values in desending order: ");displayArray(array); // prints the sorted array, should be in descending ordersortAscending(array); // sort the array in ascending orderSystem.out.print("Values in asending order: ");displayArray(array); // prints the...

Which is true? Group of answer choices A class can implement multiple interfaces A class can inherit from multiple classes A class can implement only one interface An interface can implement multiple classes

In Java!!!!!This is a multi-part question. Consider the following UML diagram on attached image: 1.Write Java classes corresponding to the UML diagram. 2. Write getters and setters for all classes 3. Write non-default constructors for each class that initializes all instance variables to values passed as arguments to the constructor 4. Write toString method for each class 5. Modify Vehicle class to maintain inventory (list of all vehicles created) and print the list. What variable(s) you need to add? What additional method(s) you need? What else needs to be modified in the Vehicle class? Do you need to modify any of the descendant classes and explain your answer (if not: why not; if yes, describe what changes). Vehicle {Abstract} manufacturer:String - color:String Car Truck TwoWheeler {Abstract} -numberOfDoors:int -numberOfAxels:int -passengerSeats:int -fuelType:String -fuelLevel:int -fuelType:String -numberOfSeats:int -fuelLevel:int Truck Motorcycle -numberOfAxels:int -fuelType:String...