Consider an online auction system where the current highest bid for each item must be maintained. A person who wishes to bid on an item calls the bid(amount) function, which compares the amount being bid to the current highest bid. If the amount exceeds the current highest bid, the highest bid is set to the new amount. This is illustrated below: void bid(double amount) { if (amount > highestBid) highestBid = amount; } Describe how a race condition is possible in this situation and what might be done to prevent the race condition from occurring. Based on the solution you describe, rewrite the bid function that can solve the problem.
Q: Write a python program that takes input values as integer, checks the number is not less than 10…
A: Given: Create another class ‘Intern’ and inherit ‘Employee’ as super class. Concatenate the integer…
Q: 2. Here is the API for a robot library. // moves the robot forward function moveForward(); // turns…
A: Explanation: If bottom-leftmost block is labelled as (0, 0), The operations in option A will make…
Q: 3. Construct a simple purchasing program based on the UML Class Diagram below. LabExer2 itemName:…
A: The program will encapsulate the data and bind data and method. Data encapsulation is taking place.…
Q: Write a program that asks a user to enter a first name, a last name, and a year, and construct an…
A: As the language is not specified answer written in python
Q: Write a Bucket class that has the following private members: • capacity (integer): capacity of the…
A: public class Bucket //Bucket…
Q: Reimplement the TrafficLight class using a simple counter that is advanced in each call to next. If…
A: According to the Question below the Solution: Output:
Q: Consider the following program: int a- 1; int main(void)H a- al2:0; return n(a); int n(int x) if (x)…
A: The main will return 2.
Q: Modify java code for Hw5 (stock,each csv file has headings: Date,Open,High,Low,Close, Adj…
A: import java.util.*; import java.io.*; public class StockData {…
Q: A vending machine is an automated machine that provides items such as snacks and beverages to the…
A: Solution ::
Q: 5. Given the definitions of class x (Figure 3) and class Y (Figure 4) below, class x { private int…
A: SolutionFigure 3 In line 2, create a class instance of name x In line 3, created an attribute of…
Q: Write a simulation of T20 match. There are two teams, Team A and Team B. For every ball delivered…
A: Code : (In java) import java.util.*;class match{ public static void main(String[] args){ Random r =…
Q: A company wants to secure users' passwords that consists of four digits only by encrytping them.…
A: The programming methodology for the program is given by: Including header files Function prototype…
Q: Write a simulation of T20 match. There are two teams, Team A and Team B. For every ball delivered…
A: import java.util.*;class T20 { public static void main(String[] args) { Random r = new…
Q: Consider the following program written in C pseudocode void foo(int x, int y){ y = y + 9;…
A: Summary: - After applying the all methods we get the same value and just the way of doing that is…
Q: The mathematician Conway imagined a game, called game of life, which considered cells that are…
A: Conway imagined game Coded in PYTHON Programing
Q: Write a Java program that simulates primitive bank operations. To achieve this goal, follow these…
A: As per the given problem, we have to design a program for basic banking system like display amount,…
Q: write a c++ program in which Imagine a tollbooth at a bridge. Cars passing by the booth are…
A: Lets see the code in the next steps
Q: p a crawler that collects the email addresses in the visited web pages. You can write a function…
A: Step 1: Below the function emails() that takes a document (as a string) as input and returns the…
Q: Write the following program in python; There is a class with m number of students and they have n…
A: Objective: This program develops a class with an 'm' number of students and an 'n' number of…
Q: Write an application with following method to resolve two player game of Rock-Paper-Scissors.…
A: Actually, program is an executable software that runs on a computer.
Q: Solve in PHP Programming Create a function that converts words or phrases depending on the value of…
A: Coded using PHP.
Q: Write a java program that read unknown number of records from the file attached below named…
A: The java program is given by import java.util.*; import java.io.*; class Main { finalstatic String…
Q: Consider the following statements: T(x, y): "x eats y". A(x). "x is wise". S(x): "x is hungry".…
A: option 3
Q: Develop a crawler that collects the email addresses in the visited web pages. You can write a…
A: Hey there, I am writing the required solution based on the above given question. Please do find the…
Q: Consider the following statements: T(x, y): "x eats y". A(x): "x is wise". S(x): "x is hungry".…
A: Answer: C
Q: Consider the following code: import acm.program.*; 02 public class Average extends…
A: The program prints the average of the numbers entered by the user.
Q: (I want to draw a flow chart for these codes ) import java.util.Scanner; public class Main {…
A: Flow Chart is a pictorial representation of the flow of a problem Here we are mostly using menus and…
Q: Q2: Write aprogram in CT' using OOP to create a class (A) , that contain the iöllowingIUnction:—…
A: Algorithm: Start Define a class A with draw1() as its method which prints "******" Define a class B…
Q: The mathematician Conway imagined a game, called game of life, which considered cells that are…
A: Solution:-- 1)As the given question has required for the solution which is to be provided in the…
Q: ere is a garage where the access road can accommodate any number of trucks at one time. The garage…
A: #include <iostream> using namespace std; class Truck { private: int id; public : Truck(int…
Q: Write a Java program that meets the following student registration requirements: 1.Reads a student’s…
A: The code involves a student class and a main class.
Q: Q2:[f we e c)if we have the following two classes defined class Matrix { int m- 0; public Matrix() {…
A: Given Java code: class Matrix { int m = 0; public Matrix() { m = 5; } public…
Q: 5. Given the definitions of class x (Figure 3) and class Y (Figure 4) below, class x { 3 private int…
A: 4 3 6
Q: Suppose that in a kitchen there is only one four-burner stove to be used both for frying pans and…
A: Answer: I have done code and also I have attached code as well as code screenshot output.
Q: Consider the following statements: T(x. y): "x eats y". A(x): "x is wise". S(x): "x is hungry".…
A: The symbolic for the given sentence is as follows.
Q: class A {protected int x1,y1,z; public: A(a, b,c):x1(a+2),yl(b-1),z(c+2) { for(i=0; i<5;j++) x1++;…
A: Answer: x1 -> 11, y1 -> 2 and z -> 8 See below step for explanation.
Q: Write a javascript function that would allow you to do this: var run = exercise('running');…
A: Using functions Print the details Call that functions Print
Q: Question 12 Consider the following program written in C pseudocode: void foo(int x, int y){ y = y +…
A: Please give positive ratings for my efforts. Thanks. ANSWER a) Passed by value a = 6…
Q: For this assignment you are requested to write a program for the following scenario: • Build a…
A: The Answer start from step-2.
Q: A word is on the loose and now has tried to hide amongst a crowd of tall letters! Help write a…
A: In order to implement the function, the crowded word with extra letters is sent to the function as…
Q: A java generic class called Validator stores requirements for user input and provides a method,…
A: As per the guideline, only 1st question is to be answered in case of multiple questions. For other…
Q: 2. Using the BasketballTeam class above, write a complete demo driver class on the next page, which…
A: 1.create a main function to execute the class2.Creating two teams for the match3.Runs the loop 40…
Q: omputer Science Use only NumPy to create the Normalize Class: Image Normalization is a technique…
A: SUMMARY: - hence we discussed all the points.
Q: Consider a vending machine
A: #include<iostream>#include<string> using namespace std; struct item { string name;…
Q: Suppose that in a kitchen there is only one four-burner stove to be used both for frying pans and…
A: Answer: I have written algorithms of this question in brief explanation.
Q: Write a program RandomWalker.java that takes an integer command-line argument n and simulates the…
A: Let assume initially the drone is at (x,y)=(0,0) For the required program we want input from command…
Q: Let Q(x, y) denote the statement “x has sent an e-mail message to y”, where the domain for both x…
A: Since you have posted a question with multiple subparts according to guildlines I will solve first…
Q: make this code an object-oriented programming: from tkinter import * def callback(r,c): global…
A: from tkinter import * class TicTacToe: def __init__(self): self.root = Tk() self.b =…
Consider an online auction system where the current highest bid for each item must be maintained. A person who wishes to bid on an item calls the bid(amount) function, which compares the amount being bid to the current highest bid. If the amount exceeds the current highest bid, the highest bid is set to the new amount.
This is illustrated below:
void bid(double amount) {
if (amount > highestBid)
highestBid = amount;
}
Describe how a race condition is possible in this situation and what might be done to prevent the race condition from occurring. Based on the solution you describe, rewrite the bid function that can solve the problem.
Trending now
This is a popular solution!
Step by step
Solved in 2 steps with 2 images
- Using C++ Dice game with varying dice (d4-d20) The game will consist of two or more players. Each player will attempt to reach a set number (say 100) By rolling dice and adding up the results of the dice roll. if the player rolls a certain number (in this case a 6) then the player gets two more tries, if they roll a 6 two more times, they lose their turn and gain no points that round. The goal to get to 100 first. During a round, each player takes a turn. At the beginning of the game, each player rolls a dice, with the higher roll going first each round. A player’s total score is the sum of their turn scores, the users will have the ability to choose either to stop or to continue after first roll, if a player decides to stop, then their turn ends and their score for that turn is their maximum roll during that turn, if the player decides to continue, they roll the dice again. At the end of the game the program should display the winner your program should have at least four of…Installation of a Shopee Billboard Max. score: 100 You are installing a billboard and want it to be at the maximum height. The billboard will have two steel supports, one on each side. The height of each steel bracket must be equal. You have a number of rebar rods that can be welded together. For example, if the bars are of length 1, 2, and 3, they can be welded together to form a length of 6 brackets. Return the maximum possible installation height of the billboard. Return 0 if the billboard cannot be installed.In C# language using Microsoft Visual Studio in Windows Forms App (.NET Framework) A slot machine is a gambling device that the user inserts money into and then pulls a lever (or presses a button). The slot machine then displays a set of random images. If two or more of the images match, the user wins an amount of money, which the slot machine dispenses back to the user. Design a program that simulates a slot machine. When the program runs, it should do the following: Ask the user to enter the amount of money he or she wants to insert into the slot machine. Create an application that simulates a slot machine. The application should let the user enter into a TextBox the amount of money he or she is inserting into the machine. When the user clicks the Spin button, the application should display three randomly selected symbols. (Slot machines traditionally display fruit symbols.
- When you borrow money to buy a house, a car, or for some other purpose, you repay the loan by making periodic payments over a certain period of time. Of course, the lending company will charge interest on the loan. Every periodic payment consists of the interest on the loan and the payment toward the principal amount. To be specific, suppose that you borrow $1,000 at an interest rate of 7.2% per year and the payments are monthly. Suppose that your monthly payment is $25. Now, the interest is 7.2% per year and the payments are monthly, so the interest rate per month is 7.2/12 = 0.6%. The first months interest on $1,000 is 1000 0.006 = 6. Because the payment is $25 and the interest for the first month is $6, the payment toward the principal amount is 25 6 = 19. This means after making the first payment, the loan amount is 1,000 19 = 981. For the second payment, the interest is calculated on $981. So the interest for the second month is 981 0.006 = 5.886, that is, approximately $5.89. This implies that the payment toward the principal is 25 5.89 = 19.11 and the remaining balance after the second payment is 981 19.11 = 961.89. This process is repeated until the loan is paid. Write a program that accepts as input the loan amount, the interest rate per year, and the monthly payment. (Enter the interest rate as a percentage. For example, if the interest rate is 7.2% per year, then enter 7.2.) The program then outputs the number of months it would take to repay the loan. (Note that if the monthly payment is less than the first months interest, then after each payment, the loan amount will increase. In this case, the program must warn the borrower that the monthly payment is too low, and with this monthly payment, the loan amount could not be repaid.)Flag question Let A = {1, 2, 3, 4, 5, 6, 7} Let B = {3, 4, 5, 6, 7, 8, 9} Let X = 13 Let X=X+|An B| Let X=X+|A U B| What is the mystery number X? Answer:A serendipity bookseller has a book club that awards points to its customers based on the number of books purchased each month. The points are awarded as follows: If a customer purchases 0 books, he or she earns 0 points. If a customer purchases 1 books, he or she earns 5 points. If a customer purchases 2 books, he or she earns 15 points. If a customer purchases 3 books, he or she earns 30 points. If a customer purchases 4 or more books, he or she earns 60 points. W rite a program that asks the user to enter the number of books that he or she has purchased this month and then displays the number of points awarded. using System;using System.Collections.Generic;using System.ComponentModel;using System.Data;using System.Drawing;using System.Linq;using System.Text;using System.Threading.Tasks;using System.Windows.Forms; namespace Chapter_4_Problem_6___Seth{public partial class bookClubPoints : Form{public bookClubPoints(){InitializeComponent();}}} C# please code with this context
- PLEASE HELP ME! ? Maximize and use alternative method to this code! package com.btech.pf101; import java.io.bufferedreader; import java.io.inputstreamreader; import java.util.calendar; import java.util.date; public class pawnshopcode { private static final bufferedreader br = new bufferedreader(new inputstreamreader(system.in)); private static string name; private static int age; private static string address; private static string contactno; private static int itemtype; private static string itemtypename; private static final int itemtype_gagdet = 1; private static final int itemtype_jewelry = 2; private static final int itemtype_musicinstrument = 3; private static final int itemtype_homeequipment = 4; private static final int itemtype_landtitle = 5; private static string itemdescription; private static int periodtype; private static string periodtypename; private static final int periodtype_days = 1; private…Implement all the classes using Java programming language from the given UML Class diagram. Note: This problem requires you to submit just two classes: Customer.java, Invoice.java. Do NOT include "public static void main()" method inside all of these classes. Graders will be testing your classes, using the unit-testing framework JUnit 4. Customer - ID:int -name:String -discount:int Discount rate in percent +Customer(ID:int,name:String, discount:int) +getID():int +getName ():String +getDiscount():int +setDiscount(discount:int):void +toString():String "name (ID)" The Customer class models, a customer design as shown in the class diagram. Write the codes for the Customer class and a test driver to test all the public methods. Invoice - ID:intSerendipity Booksellers has a book club that awards points to its customers based on the number of books purchased each month. The points are awarded as follows: If a customer purchases no books, he or she earns 0 points If a customer purchases 1 through 5 books, he or she earns 5 points for each book. If a customer purchases 6 through 10 books, he or she earns 10 points for each book. If a customer purchases 11 or more books, he or she earns points equal to 20 points for each book. (Use Python) Use the Design Recipe to write the function customer_rewards which consumes the number of books purchased, and returns the total points. Include a docstring! Write 3 assert_equal statements to test your function.
- Theater Ticket System: A small ten-seat theater has contracted you to build software which will reserve tickets. The theater has two rows of five seats each. Each row is referred to by number (1 or 2) and each seat in the row is referred to by letter (A, B, C, D, and E). When started, the program should ask the user for the row they prefer (row selection). If that row has no empty seats then the program should ask the user if they prefer the other row, if no then display a message stating the next show is tomorrow. Upon selecting a row, the program should present the user with a choice of available seats in the row. The user can then either choose a seat and print the ticket (in this case a simple message will suffice) or return to row selection. If a ticket is printed the program should return to row selection. The program terminates when all seats are reserved. Please enter a row: 1 Available seats: A B C D E Which seat, enter Q for none?: B You have booked seat: 1B…Theater Ticket System: A small ten-seat theater has contracted you to build software which will reserve tickets. The theater has two rows of five seats each. Each row is referred to by number (1 or 2) and each seat in the row is referred to by letter (A, B, C, D, and E). When started, the program should ask the user for the row they prefer (row selection). If that row has no empty seats then the program should ask the user if they prefer the other row, if no then display a message stating the next show is tomorrow. Upon selecting a row, the program should present the user with a choice of available seats in the row. The user can then either choose a seat and print the ticket (in this case a simple message will suffice) or return to row selection. If a ticket is printed the program should return to row selection. The program terminates when all seats are reserved.The language is C# Write a program named TestScoreList that accepts eight int values representing student test scores. Display each of the values along with a message that indicates how far it is from the average. An example of how the results should be output is as follows: Test # 0: 89 From average: 6 Test # 1: 78 From average: -5