In Java Write a class definition for a Rectangle class that contains: • Two int fields, length and width. • Mutator and accessor methods for the length and width fields. • A Boolean method named isSquare that returns true if the rectangle’s length and width are the same and false otherwise. b) Write a class definition for a RectangleDriver class that contains a main method that acts as a driver for the Rectangle class of the previous problem. The main method should do this: • Construct a Rectangle object named rect. • Use the mutator methods to assign arbitrary values to rect’s length and width fields. • Use the Boolean method to determine if rect is a square. -- If rect is a square, print "Square: " and then the square’s dimensions. For example: Square: 4x4. -- If rect is not a square, print "Rectangle: " and then the rectangle’s dimensions. For example: Rectangle: 6x13. • In printing the above messages, use the accessor methods to retrieve the rectangle’s dimensions

Implement the Seller class as a derived class of Person class. Create the seller.h and seller.cppfiles for this class. The Seller class contains additional data members that hold a seller’s:o average star rating received from the buyers, ando total number of items sold.These data should be accessible by its derived classes. (should these data be private, public, orprotected?) The following methods are included in the seller class:• A default constructor and a copy constructor• A constructor that receives all of the data for a seller.(for the constructors, make sure to call the base class constructor as appropriate)• Appropriate get and set functions for the new data in this class• print() – overrides the base class print() to print the base class data and print all additionalseller data with appropriate messages. Make sure to call the base class print to print thebase class data.• read() – overrides the base class read() to read the base class data and reads all additionalseller data...

In Java Your uncle is trying to keep track of his new-car and used-car lots by writing a Java program. Heneeds your help in setting up his classes.Implement a superclass named Car that contains a price instance variable, a getPrice method, anda 1-parameter constructor. The getPrice method is a simple accessor method that returns the priceinstance variable’s value. The 1-parameter constructor receives a cost parameter and assigns avalue to the price instance variable based on this formula:price = cost * 2;Implement two classes named NewCar and UsedCar; they are both derived from the Carsuperclass. NewCar should contain a color instance variable (the car’s color). UsedCar shouldcontain a mileage instance variable (the car’s odometer reading). The NewCar and UsedCarclasses should each contain a 2-parameter constructor, an equals method, and a toString() method.In the interest of elegance and maintainability, don’t forget to have your subclass constructors callyour superclass constructors...

It has just one Main class which tests abstract class Animal and its 3 subclasses: Dog, Cat, and Fish. It also tests the Talkers: Dog, Cat, and Radio. So your job is to write all 6 of these simple classes (they should be less than one page each) : Talker.java - the interface Talker, which has just one void method called speak() Animal.java - the abstract class Animal, which stores an animal's name. (No abstract methods). It should contain 2 methods: a constructor with 1 argument (the name) a method getName() which returns the name. Dog.java - the class Dog, which extends Animal and implements Talker. It should contain 3 methods: a constructor with no arguments, giving the dog a default name of "Fido" a constructor with 1 argument (the name) a speak() method that prints "Woof" on the screen. Use @Override Cat.java - the class Cat, which extends Animal and implements Talker. It should contain just 2 methods: a constructor with 1 argument (the name) (no default name like dogs...

This class is used to store a time of day and output it.It also stores the current time of day and manipulates it. class Time{ // instance variables for an object to store a time of day: private int hours; private int minutes; // static Time object to store the current time of day, // defaults to midnight: private static Time curTime = new Time(); // Default Constructor // initialize time to 00:00 (midnight) public Time() { hours = minutes = 0; } // Constructor to parse a string hh:mm as the Time public Time(String hourColonMinute) { int colonIdx = hourColonMinute.indexOf(':'); hours = Integer.parseInt(hourColonMinute.substring(0, colonIdx)); minutes = Integer.parseInt(hourColonMinute.substring(colonIdx+1)); normalize(); } // initialize time using parameters for hour and minute public Time(int hr, int min) { hours = hr; minutes = min; normalize(); } // set current time to parameters public static void setCurTime(int hr, int min) {...

In java ****

JAVA PROGRAM For this program, you are tasked to implement the Beverage class which has the following private properties: name - a string value volume - this is an integer number which represents its current remaining volume in mL isChilled - this is a boolean field which is set to true if the drink is chilled It should have the following methods: isEmpty() - returns true if the volume is already 0 {toString() - returns the details of the object in the following format: {name} ({volume}mL) {"is still chilled" | "is not chilled anymore"}.Example returned strings: Beer (249mL) is still chilled Water (500mL) is not chilled anymore A constructor method with the following signature: public Beverage(name, volume, isChilled) Getter methods for all the 3 properties. Then, create two final subclasses that inherit from this Beverage class. The first one is the Water class which has the additional private property, type, which is a String and can only be either "Purified", "Regular",...

For the programming language Java

Java- Suppose that Vehicle is a class and Car is a new class that extends Vehicle. Write a description of which kind of assignments are permitted between Car and Vehicle variables.

1. Design a new Triangle class that extends the abstract GeometricObject class. Write a test program that prompts the user to enter three sides of the triangle, a color, and a Boolean value to indicate whether the triangle is filled. The program should create a Triangle object with these sides and set the color and filled properties using the input. The program should display the area, perimeter, color, and true or false to indicate whether it is filled or not.

JAVA Design a class named MyInteger. The class contains: An int data field named value that stores the int value represented by this object. A constructor that creates a MyInteger object for the specified int A get method that returns the int Methods isEven(), isOdd(), and isPrime() that return true if the value is even, odd, or prime, respectively. Static methods isEven(int), isOdd(int), and isPrime(int) that return true if the specified value is even, odd, or prime, respectively. Method equals(int) that return true if the value in the object is equal to the specified value.

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

Write a class definition line and a one line docstring for the class Dog. Write an __init__ method for the class Dog that gives each dog its own name and breed. Test this on a successful creation of a Dog object.>>> import dog>>> sugar = dog.Dog('Sugar', 'border collie')>>> sugar.name'Sugar'>>> sugar.breed'border collie' Add a data attribute tricks of type list to each Dog instance and initialize it in __init__ to the empty list. The user does not have to supply a list of tricks when constructing a Dog instance. Make sure that you test this successfully.>>> sugar.tricks[] Write a method teach as part of the class Dog. The method teach should add a passed string parameter to tricks and print a message that the dog knows the trick.>>> sugar.teach('frisbee')Sugar knows frisbee