In JavaScript, Window.prompt() method returns true value. Select one: O True OFalse

Please help in JavaScript

Write method IsEven that uses the remainder operator (%) to determine whether an integer is even. The method should take an integer argument and return true if the integer is even and false otherwise. Incorporate this method into an app that inputs a sequence of integers (one at a time) and determines whether each is even or odd.

Task3: Program an encryption tool that uses XOR operation to encrypt the message. (Note: the key should be numerical) Hint': you must encrypt all letters of the "plaintext" variable. Hint?: you have to iterate through all letters to encrypt them. Hints: you can use ord() method, to receive each character Unicode https://careerkarma.com/blog/python-ord/ "The text to be encrypted" plainTxt key = "432457" %3D Here's the output: [W@VJAG]VVPZPOL[CFPP plainTxt = "The text to be encrypted" key "theKey" %3D The key must be numbers

Using a conditional expression, write a statement that increments numUsers if updateDirection is 1, otherwise decrements numUsers. Ex: if numUsers is 8 and updateDirection is 1, numUsers becomes 9; if updateDirection is 0, numUsers becomes 7. Hint: Start with "numUsers = ..". 1 import java.util.Scanner; 2 3 public class UpdateNumber0fUsers { public static void main (String [] args) { Scanner scnr = new Scanner(System.in); int numUsers; int updateDirection; 4 7 8 9. numUsers scnr.nextInt(); %3D 10 updateDirection scnr.nextInt((); %3D 11 12 /* Your solution goes here */ 13 Create a conditional expre and non negative otherwi System.out.println("New value is: } + numUsers); %3D 14 is negative. 15 import je.util.Scanner 16 }

Python isValidDate – takes one string as a parameter, returns True if the string is a valid date. Otherwise, returns False.

JAVA Project 2-3 Rectangle Calculator Create an application that calculates the area and perimeter of a rectangle. Then using a loop, ask the user if they want to continue. If yes then repeat the input, processing, and output. If no then end the program. Console Welcome to the Area and Perimeter Calculator   Enter length: 100 Enter width:  200 Area:         20000.0 Perimeter:    600.0   Continue? (y/n): y     Specifications The formulas for calculating area and perimeter are: area = width * lengthperimeter = 2 * width + 2 * length The application should accept decimal entries like 10.5 and 20.65. Assume that the user will enter valid numeric data for the length and width. The application should continue only if the user enters “y” or “Y” to continue. Input: Print the header "Welcome to the Area and Perimeter Calculator" Ask the user to enter a length Ask the user to enter a width Processing: Save the length and width in variables Calculate the area and save the results in a variable…

Create a method that randomly select a letter in the alphabet

Please help I am having trouble with my gui for my encryption and decryption java code The encryption and decryption java code is below and the gui file is in the photos import java.util.*;
public class Main
{   
    public static boolean isALetter(char letter){
        if( (letter >= 'a' && letter = 'A' && letter =-32767 && encryptKey

in c# please  Write an app that simulates coin tossing. Let the app toss a coin each time the user chooses the “Toss Coin” menu option. Count the number of times each side of the coin appears. Display the results. The app should call a separate method Flip that takes no arguments and returns false for tails and true for heads. [Note: If the app realistically simulates coin tossing, each side of the coin should appear approximately half the time.]