Suppose that Atlas Computer Security has contacted you about consulting for them to develop public key encryption software. One thing you're going to need in this software is a method that can test whether a number is a prime or not. To help demonstrate your prime number tester, the company wants you to write a Java applet that prompts the user for a positive integer and then displays all of the prime numbers less than or equal to the user's integer. If they like your demo, they will probably give you the contract for the encryption software.