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- For this assignment, you will develop the planning necessary for constructing a class that implements a Bag ADT in Java. Your program will store corresponding items for an On-Line Food Delivery Service. Specifically, your program should consider an item's name and price and manage the customer's shopping cart. The following are example values your class will be using for data: Customer Number = 1; item_Name="Can of Soup"; Price = $4.00; After selecting your values for data, what are the required operations that must be used to create the Bag Interface? Your deliverable will consist of the following: Pseudocode for your proposed program Flowchart of the operations of adding items to the shopping cart and removing items from the cart.Please use java only. In this assignment, you will implement a simple game in a class called SimpleGame. This game has 2 options for the user playing. Based on user input, the user can choose to either convert time, from seconds to hours, minutes, and seconds, or calculate the sum of all digits in an integer. At the beginning of the game, the user will be prompted to input either 1 or 2, to indicate which option of the game they want to play. 1 will indicate converting time, and 2 will indicate calculating the sum of digits in an integer. For converting time, the user will be prompted to input a number of seconds (as an int) and the program will call a method that will convert the seconds to time, in the format hours:minutes:seconds, and print the result. For example, if the user enters 6734, the program will print the time, 1:52:14. As another example, if the user enters 10,000, the program should print 2:46:39. For calculating the sum of digits in an integer, the user will be…a) Design and implement a Comparable Java class to represent a Rational number such as3/2. Your class will have the following methods as well as any other methods necessary (setters, getters, etc.). - A constructor that takes all parameters (numerator, denominator), - A function that returns the number of existing Rational objects, - Override the tostring method, - Methods for adding and multiplying Rational objects, - Your methods will throw exceptions if there are problems. b) Write another class to test your Rational class including the exceptions.
- The Problem: You have a function that is called repeatedly to compute thesame values. This function is taking a long time to do its job. How can you makethings faster?Let's take a look at an example. Below is a rectangle class. Thefunction compute_serial returns a unique serial string which is used forsorting the shapes classes.class rectangle { private: int color; int width; int height; rectangle(int i_color, int i_width, int i_height): color(i_color), width(i_width), height(i_height) {} void set_color(int the_color) { color = the_color; } char serial_string[100]; // Unique ID string char* get_serial() { snprintf(serial_string, sizeof(serial_string), “rect-%d x %d / %d”, width, height, color); return (serial_string); }Examination of this class shows that it uses the snprintf to compute the serial string. This is an extremely costly function to use. We need optimize out this function if at all possible. Dont copy old bartleby answer its wronga)Implement all the classes. The formula for calculating salary for each class is shown below: For the Employee class, salary = basic salary + allowance For the Manager class , salary = basic salary + allowance + travel claims For the Clerk class , salary = basic salary + allowance + overtime pay,where overtime pay = overtime hours x overtime rate. Set overtime rate as RM3.50. Use java to write a client program that creates an array named empArray that stores an object of an Employee,a Manager and a Clerk.In your program, include a method called printElements() that takes an array as parameter and prints the type of employee, the object’s data field values (by invoking thetoString() method) and the monthly salary.I need help with this. Thanks in advance It might not be reasonable to expect users to type long entries such as “oil change” accurately. Implement the CarCareChoice2 class so that as long as the user enters the first three characters of a service, the choice is considered valid. An example of the program is shown below: Enter selection:oil changetire rotationbattery checkbrake inspectionbatry checkbatry check price is $15 import java.util.*; public class CarCareChoice2 { // Modify the code below public static void main (String[] args) { Scanner input = new Scanner(System.in); boolean isMatch = false; String[] items = { "oil change", "tire rotation", "battery check", "brake inspection"}; int[] prices = {25, 22, 15, 5}; int x; int matchIndex = 0; String menu = "Enter selection:"; for(x = 0; x < items.length; ++x) menu += "\n " + items[x]; System.out.println(menu); String selection =…
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- Reuse your Car class . In a main, build an object of that class, and print out the object using System.out.println(). Notice that this simply reports the memory address of the object in question, and we’d like to do something more useful. To replace (or override) the toString (or equals) function. Now, build a toString function that prints out the make, model, and odometer reading for a vehicle object. public class Car { //instance variables private int odometer; private String make; private String model; //overloading //constructors public Car(int odometer,String make, String model) { this.odometer = odometer; this.make = make; this.model = model; } public Car(String make, String model) { this.make = make; this.model = model; } public Car(String make) { this.make = make; } /* *getter & setter methods */ public int getOdometer() { return odometer; } public void…(a)Implement all the classes. The formula for calculating salary for each class is shown below: For the Employee class, salary = basic salary + allowance For the Manager class , salary = basic salary + allowance + travel claims For the Clerk class , salary = basic salary + allowance + overtime pay,where overtime pay = overtime hours x overtime rate. Set overtime rate as RM3.50. Write a client program that creates an array named empArray that stores an object of an Employee,a Manager and a Clerk.In your program, include a method called printElements() that takes an array as parameter and prints the type of employee, the object’s data field values (by invoking thetoString() method) and the monthly salary.You must implement the pieces of the below classes on the following pages. You only should implement the functions that are underlined and followed by a "TODO: implement" comment. An example main function is provided to help you test your solution. You may assume the other functions have been implemented correctly, and you may use them. class Point { public: Point(); Point(double, double); double getX() const; double getY() const; void setX(double); void setY(double); void move(double, double); private: double xCoord; double yCoord; public: // output format: (x,y) void display() const; }; class Rectangle { public: Rectangle(); Rectangle(const Point &ll, double w, double h); Rectangle(const Point &ll, const Point &ur); // TODO: implement // Output format - LL:(x,y) W:width H:height…