Create a java program a. Create a class named Purchase. Each Purchase contains an invoice number, amount of sale, and amount of sales tax. Include set methods for the invoice number and sale amount. Within the set() method for the sale amount, calculate the sales tax as 5% of the sale amount. Also include a display method that displays a purchase’s details. Save the file as Purchase.java. b. Create an application that declares a Purchase object and prompts the user for purchase details. When you prompt for an invoice number, do not let the user proceed until a number between 1,000 and 8,000 has been entered. When you prompt for a sale amount, do not proceed until the user has entered a nonnegative value. After a valid Purchase object has been created, display the object’s invoice number, sale amount, and sales tax. Save the file as CreatePurchase.java

You need to make a statement that sets the object's monthlyPay reference variable.array that can store a decimal value

________ are the number of different ways in which objects can be arranged without regard to order.     Simple events     Random variables     Combinations     Permutations

The game of Nim starts with a random number of stones between 15 and 30. Two players alternate turns and on each turn may take either 1, 2, or 3 stones from the pile. The player forced to take the last stone loses. Create a nim application in python that allows the user to play against the computer. In this version of the game, the application generates the number of stones to begin with, the number of stones the computer takes, and the user goes first. The Nim application code should:  prevent the user and the computer from taking an illegal number of stones. For example, neither should be allowed to take three stones when there are only 1 or 2 left. include an is_valid_entry() function to check user input. include a draw_stones() function that generates a random number from 1 to 3 for the number of stones the computer draws.   include separate functions to handle the user’s turn and the computer’s turn. My problem is that the code is not outputting like it's supposed to.…

Instructions: IMPORTANT: This is a continuation of the previous part of the project and assumes that you are starting with code that fulfills all requirements from that part of the project. Modify the your code from the previous part of the project to make it modular. In addition to the main method, your code must include the following static methods: Method 1 - displayTitle A method that creates a String object in memory to hold the text “Computer Hardware Graphics Quality Recommendation Tool” and displays it Method 2 – getResolutionString A method that accepts an integer value (1, 2, 3, or 4) that denotes the monitor resolution.  The method should return the appropriate String representation of the monitor resolution.  For example, if the method is passed an integer value of 1, it should return a String with a value of “1280 x 720”.  (See Step 4 of Project 1) Method 3 – getMultiplierValue A method that accepts an integer value (1, 2, 3, or 4) that denotes the monitor resolution and…

Please help me with the below using java please also comment each line of code

IN PYTHON PLEASE, THANK YOU!!!

1.In your game console class, add a start function which should prompt the user for an email address. -Use a regular expression to validate that it is a valid email address and prompt them again until they enter a valid one. -Next, prompt the user to enter a credit card number and use a regular expression to validate the credit card. -Prompt them again until they enter a valid one and once done, display the game menu. Existing Code below: class Game {constructor(name){this.name = name;}} class GameConsole{constructor(){this.games = [];}  load(){var gameNames = ["Zelda", "Halo", "Mario", "The God Among Us\n"];for (var i = 0; i < gameNames.length; i++) {let game = new Game(gameNames[i]);this.games.push(game);}}  log(){console.log("Games Loaded:");for (var i = 0; i < this.games.length; i++) {var name = this.games[i].name;console.log(name);}}} let gamecon = new GameConsole();gamecon.load();gamecon.log(); const prompt = require('prompt-sync')(); var adventurersName = ["Captain…

Java code File IO ApplicationA shop collects the following information from its customers:1. Full name (first name, last name, and optional middle initial) 2. Address (street name and number, city, zip code, and state)3. Phone number 4. Email 5. First visit/service date6. Most recent visit/service date7. Total amount charged8. Current balance and description of the last service You are to write a program that allow the shop to manage their customers. The shop needs the following functionalities:1. Search for a customer by:a. Nameb. Phone numberc. Email (The result of the search would have similar option as in the “List all customers” option below)2. List all customersa. Select and edit a customer b. Delete a customer3. Add a new customera. Prompt for appropriate data fields4. Get account consolidation sheet that shows total charges and total balance of all customers5. Get the records of the biggest 5 spenders (spend the most)6. Exit and save all changes (all changes to the customers…

Write a class name FileDisplay with the following methods:   Constructor:  takes the name of a file as an argument displayHead:  displays only the first five lines of the file’s contents.  If the file contains less than 5 lines, it should display the file’s entire contents. displayContents:  displays the entire contents of the file, the name of which was passed to the constructor. writeNew:  displays the contents of a file, the name of which was passed to the constructor.  Each line should be preceded with a line number followed by a colon.  The line numbering should start at 1.  As each line is displayed it should also be written to a new file, the name of which is passed in as a parameter. I have provided a test file called “testfile.txt”.  I have also provided a driver for the application called “filedisplaytest.java”.  This file is complete and should not be altered. Test File: This is line one.This is line two.This is line three.This is line four.This is line five.This is line…