Referring to the previous DecimalFormatting class, there were three lines of code. static DecimalFormat df = new DecimalFormat("#,##0.00; (###0.00)"); static DecimalFormat df1 = new DecimalFormat("##0.0%"); static DecimalFormat df2 = new DecimalFormat("$ #,###0.00;$ (# ###30.00)"); Learning item 1: these are considered global variables (df, df1 and df2) because they are ahead of main, outside of a method and at the class level. Learning item 2: they are all declared "static" because they are referred to and used by main(...), which is a static method. Your question: df, df1 and df2 are considered to be direct object instances of which class? java Ojava.text DecimalFormat NumberFormat

Referring to the previous DecimalFormatting class, there were three lines of code. static DecimalFormat df = new DecimalFormat("#,##0.00; (###0.00)"); static DecimalFormat df1 = new DecimalFormat("##0.0%"); static DecimalFormat df2 = new DecimalFormat("$ #,###0.00;$ (# ###30.00)"); Learning item 1: these are considered global variables (df, df1 and df2) because they are ahead of main, outside of a method and at the class level. Learning item 2: they are all declared "static" because they are referred to and used by main(...), which is a static method. Your question: df, df1 and df2 are considered to be direct object instances of which class? java Ojava.text DecimalFormat NumberFormat

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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// Declare data fields: a String named customerName, // an int named numItems, and // a double named totalCost.// Your code here... // Implement the default contructor.// Set the value of customerName to "no name"// and use zero for the other data fields.// Your code here... // Implement the overloaded constructor that// passes new values to all data fields.// Your code here... // Implement method getTotalCost to return the totalCost.// Your code here... // Implement method buyItem.//// Adds itemCost to the total cost and increments// (adds 1 to) the number of items in the cart.//// Parameter: a double itemCost indicating the cost of the item.public void buyItem(double itemCost){// Your code here... }// Implement method applyCoupon.//// Apply a coupon to the total cost of the cart.// - Normal coupon: the unit discount is subtracted ONCE// from the total cost.// - Bonus coupon: the unit discount is subtracted TWICE// from the total cost.// - HOWEVER, a bonus coupon only applies if the…
Write an application (including algorithm) that uses a class called “Book” (seedetails below). The application must perform the following tasks. Create an array of “Book” objects (i.e., array must be able to store 2books). Create 2 “Book” objects initialized as follows.o title = “C++ Textbook”; Author = “Pete Parker”; Publisher =“Cengage”, ISBN = “0123456789”; subject = “Computer Programming”;o title = “Java Textbook”; Author = “Bruce Wayne”; Publisher = “McGrawHill”, ISBN = “9876543210”; subject = “Computer Programming”; Add the two books to the array.o Assume the two publishers have merged into a new company called“BookConglomerate”. Use a loop to create statements to modify thepublisher field with the new publisher name. Display the following information for both bookso Book Title (i.e., “C++ Textbook” or “Java Textbook”)o Authoro Publishero ISBNo SubjectThe Book class must contain the following. Constructor with parameters that initialize all instance variables title, author,…
IN C# PLEASE Create class Cube. The class has attributes length and width and depth, each of which defaults to 1. It has read-only properties that calculate the Perimeter and the Area for a side of the cube, and another that calculates the cubed feet for the cube. (You will have to research how to do that calculation online) It has properties for length and width and depth. The set accessors should verify that length and width and depth are all floating-point numbers greater than 0.0 and less than 20.0. Write an app to test class Cube by creating 3 cubes of different sizes.
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TOPICS: Using Classes and Objects MUST BE IN JAVA. PLEASE USE COMMENTS AND WRITE THE CODE IN SIMPLEST FORM. 1. Write an application that prompts for and reads the user’s first and last name (separately), then displays a string composed of the first four characters of the user’s last name, followed by the first two letters of the user’s first name, followed by a random number in the range of 10 to 99. Assume that the last name is at least four letters long. Similar algorithms are sometimes used to generate usernames for new computer accounts. Testing: If the inputs were “Michael” and “Jackson,” the output should look like “JackMi42.” Include several tests with different inputs, including your own name.
Project: Two Formulas in Separate Class Write two formulas your choice in separate file and you call it in some manner from your from main program. In Java the pic for example
2. Name the demo file firstname_lastname_PE2 Create a program that simulates a dumpster diving game. Dumpster diving is when you search for loot in large industrial sized trash bins. In the game you will roll a ten-sided dice to determine what the user has received. Use the UML below as a guide for the Die class (Name the class Die.java). Die - sideUp: int = 10 - value: int + Die() + roll(): void + getvalue(): int Below are some suggestions to aid you in designing the game: • Each round of the game is performed as an iteration of a loop that repeats as long as the player wants to "dive" for more items. • At the beginning of each round, the program will ask the user whether or not he or she wants to continue diving. The program simulates the rolling of a ten-sided die Each item that can be caught is represented by a number generated from the die; for example, 1 for "a half-eaten sandwich", 2 for "a left shoe", 3 for "a broken watch", and so on. • Each item the user catches is worth a…
For beginning Java, need help with this: " Purpose: Define class using OO approach Understand how to create and manipulate list of objects Design and create a well-structure program using basic programming constructs and classes Description: Write a program to help you to manage courses you are taking this semester. Your program provides the following options: List all courses Add a course Search word: show all the courses that has the word in the course title (ask the user for the word) List >= input-unit: show all the courses that has unit >= input-unit (ask the user for input) Exit Explanation of options: The program prints your course list. Initially, it should say “Your list is empty” The program asks the user input for a course including: course ID, number of units and title. The program asks the user to input the search word. Then, display all courses that has that word in the title. The search must be case-insensitive. For example, “computer” and…
Do it soon i will rate Create a Console application named Debug5DA Save the application in the FirstInitialLastnameCSUnit5D folder. // Uses DisplayAddress method three times using static System.Console; class Debug5DA { static void Main() { DisplayAddress; Writeline("Welcome to Earth!"); DisplayAddress; WriteLine("3rd Rock from the Sun!"); DisplayAddres; } public void DisplayAddress() { WriteLine("------------------------------"); WriteLine("Visit us on the web at:"); WriteLine("www.WelcomeToEarth.com"); WriteLine("******************************"); } }
2please write in C#