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Write a CashRegister class that can be used with the RetailItem class that you wrote in Part 1. The CashRegister class should simulate the sale of a retail item. It should have a constructor that accepts a RetailItem object as an argument. The constructor should also accept an integer that represents the quantity of items being purchased. In addition, the class should have the following methods:• The getSubtotal method should return the subtotal of the sale, which is the quantity multiplied by the price. This method must get the price from the RetailItem object that was passed as an argument to the constructor.• The getTax method should return the amount of sales tax on the purchase. The sales tax rate is 6 percent of a retail sale.• The getTotal method should return the total of the sale, which is the subtotal plus the sales tax.Demonstrate the class in a program that asks the user for the quantity of items being purchased and then displays the sale's subtotal, amount of sales tax and total.And here is my RetailItem Class I wrote....import java.io.*;import java.util.Scanner; //Needed for Scanner Classpublic class RetailItem {private String description; // Name of itemprivate int units; // Amount of unitsprivate double price; // Price of each unitpublic RetailItem(){}// Counstructor with arguementspublic RetailItem(String des, int u, double p){description = des;units = u;price = p;}/***This setDescription Method sets the item description*@param des The String stored in the description field.*/public void setDescription (String des){description=des;}/***This setPrice Method sets the price of the item.*@param p The value stored in the price field.*/public void setPrice (double p){price=p;}/***This setUnits Method is the number of units of a*specific item.*@param u The value stored in the units field.*/void setUnits(int u){units = u;}/***The getUnits method returns the number of units.*@return The Value in the Units field.*/public int getUnits(){return units;}/***The getDescription method returns the description of*the item.*@return The despription in the description field.*/public String getDescription(){return description;}/***The getPrice method returns the items price.*@return The value in the price field.*/public double getPrice(){return price;}}/***This program demostrates the RetailItem Class*/class RetailTest{public static void main (String [] args){String str ="Shirt";//Creates new RetailItem objects.RetailItem r1=new RetailItem ("Jacket", 12, 59.95);RetailItem r2=new RetailItem ("Designer Jeans", 40, 34.95);RetailItem r3 =new RetailItem ();//function call to set valuesr3.setDescription(str);r3.setUnits(20);r3.setPrice(24.95);//Output of dataSystem.out.println("\tDescription\t\tUnits on Hand\t\tPrice");System.out.println("Item#1\t"+r1.getDescription()+ " \t\t\t "+r1.getUnits()+ " \t\t\t " + r1.getPrice());System.out.println("Item#2\t"+r2.getDescription()+ " \t "+r2.getUnits()+ "\t\t\t\t" + r2.getPrice());System.out.println("Item#3\t"+r3.getDescription()+ " \t\t\t "+r3.getUnits() +" \t\t\t " + r3.getPrice());//Exit programSystem.exit(0);}}
Write a function called getHeight() that returns the height of a given binary tree - CptS 122 Write a function called countSmallerThan() that returns the number of nodes whose values are smaller than the supplied input paramter
Write a program that asks the user to enter a series of one-digit non-negative numbers
Write a C program that prompts for a variable number of integers, adds them up, and prints out the average. The user will enter either an integer to be averaged.
You will write a program that draws a single level for a "Roguelike" computer game. The program will parse a line of input text from an input file (room.txt), use the parsed text to determine the shape of the room and its contents and then draw the ..
Write the definitions of the class circularLinkedList and its member functions. (You may assume that the elements of the circular linked list are in ascending order.)
Classify the two alternatives in terms of what type of application architecture they use. b. Outline the pros and cons of the two alternatives and make a recommendation to Fred about which is better.
1. Write a function that takes an integer array and the array's size as parameters. The function will check if the array is sorted. If it is, it will return a 1. If it is not sorted it will return 0. The function should not sort the array.
Select two types of sporting teams and de?ne subclasses for them. These classes shouldinherit from a base team class such as that created in Exercise 1. Include uniquecharacteristics about the sport.
Explain what constructors do and when they are executed. Explain the two types of constructors. Provide an example class that includes both types of constructor functions and demonstrate how an object would be instantiated using both types of constru..
C language, compute a program that calculates three RESISTANCE inputs, and gives you the total resistance in OHMS. Like this, the total resistance is _____ ohms. These are three parallel circuits so the formula would be (1/R1 + 1/ R 2 + 1/ R 3 ) -1
Illustrate example from ANSI C programming language, without using nested procedures, to show the fact that "assignment-by-sharing in conjunction with quasi-dynamic object binding
Apply the principle of superposition to determine whether the following systems are linear. Sketch what the plot of the function looks like.
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