Write a tester program to test the mobile class defined below. Create the class named with your id (for example: Id12345678) with the main method. Create two mobiles M1 and M2 using the first constructor. Print the characteristics of M1 and M2. Create one mobile M3 using the second constructor. Change the id and brand of the mobile M3. Print the id of M3. The programming language I'm using is Java. So, it'll be much appreciated if the answer was in Java. Thanks.

please may you :  create a Python class named Animal with properties for name, age, and a method called speak. also include an initializer method for the class and demonstrate how to create an instance of this class. and  extend the Animal class by adding a decorator for one of its properties (e.g., age).  please include both a getter and a setter for the property, and demonstrate error handling.

Write a Rectangle class. Its constructor should accept length and width as a parameter. It should have methods that return its length, width, perimeter, and area. (Use Java) Show a demonstration where you create two separate rectangles.

In Java, Create a class Rectangle with double attributes length and width. The default constructor should set these attributes to 1. Provide methods that calculate the rectangle's perimeter and area, as well as accessors and mutators for both data fields. The mutator methods for length and width should verify that the number being passed in is larger than 0.0 and less than 20.0 -- if it doesn't fit those criteria, the value of the field should not be changed.Write a Driver class in the same file to test your Rectangle class. It should prompt the user to enter a length and width of a rectangle, and then print out the area and perimeter of the rectangle. (Use the mutators to set the length and width of the rectangle, not the constructor.)

Exercise 1 - Number Guessing Game Make a new Java Project called Lab2. Within it, add a new class with the main method called NumberGuessGame. Inside the main method, implement a number guessing game, which will work by generating a pseudorandom number in the range of 0 to 100 (inclusive, so both 0 and 100 should be possible), then asking the user to enter a number that will be their guess. If the two match, display an appropriate message. Otherwise, display either "greater" or "lesser", depending on whether the pseudorandom number is greater than or less than the number entered.

Using classes, design an online address book to keep track of the names, addresses, phone numbers, and birthdays of family members, close friends and certain business associates. Your program should be able to handle a maximum of 10 entries. For that, (10) • Define the class Address that can store a street address, city, state, and zip code. Use the appropriate methods to print and store the address. Also, use constructors to automatically initialize the data members. Define the class Person and its attributes. Add a data member to this class to classify the person as a family member, friend, or business associate. Also, add a data member to store the phone number. You must Add (or override) methods to print and store the appropriate information. Use constructors to automatically initialize the data members. • Now, Define the class AddressBook using previously defined classes. The program should perform the following operations: o Load the data into the address book. Search for a…

I don't know how to complete this. Modify the class named Billing that includes three overloaded computeBill() methods for a photo book store. • When computeBill() receives a single parameter, it represents the price of one photo book ordered. Add 8% tax, and return the total due. • When computeBill() receives two parameters, they represent the price of a photo book and the quantity ordered. Multiply the two values, add 8% tax, and return the total due. • When computeBill() receives three parameters, they represent the price of a photo book, the quantity ordered, and a coupon value. Multiply the quantity and price, reduce the result by the coupon value, and then add 8% tax and return the total due. public class Billing {final static double TAX = 0.08;public static void main(String[] args) {final double HIGHPRICE = 24.99;final double MEDPRICE = 17.50;final double LOPRICE = 10.00;final int QUAN1 = 4;final int QUAN2 = 6;double bill;bill = computeBill(HIGHPRICE);System.out.println("The…

Can you help me with this please: Write the definition of a class swimmingPool, to implement the properties of a swimming pool. Your class should have the instance variables to store the length (in feet), width (in feet), depth (in feet), the rate (in gallons per minute) at which the water is filling the pool, and the rate (in gallons per minute) at which the water is draining from the pool. Add appropriate constructors to initialize the instance variables. Also, add member functions to do the following: determine the amount of water needed to fill an empty or partially filled pool, determine the time needed to completely or partially fill or empty the pool, and add or drain water for a specific amount of time, if the water in the pool exceeds the total capacity of the pool, output "Pool overflow" to indicate that the water has breached capacity. The header file for the swimmingPool class has been provided for reference. Write a program to test your swimmingPool class. An example of…

Below 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…

Write a program which controls a metro train and that keeps track of stations and who gets on and off.  Design and implement a class called train, which has at least the following:   At least the following attributes (you can include others):   metroID stationNum which keeps track of the station that the train is at. iii. direction which keeps track of the direction the train is travelling in. passTotal which keeps track of the number of passengers currently on the train. A default constructor which sets the metroID to a random number between 1 and 1000, the station number to 0, the direction (int), and the passTotal to 0 (train is empty). A constructor with one parameter; the parameter is the metro id. The constructor assigns the passed integer to the metroID attribute; the rest of the attributes are set as described in the default constructor. Accessor methods for each attributes. Mutator methods for each attributes. nextStation(int lastStation) which determines the next…