Charge Account Validation Create a class with a method that accepts a charge acc
ID: 3635599 • Letter: C
Question
Charge Account Validation Create a class with a method that accepts a charge account number as its argument. The method should determine whether the number is valid by comparing it to the following list of valid charge account numbers. 5658845 4520125 7895122 8777541 8451277 1302850 8080152 4562555 5552012 5050552 7825877 1250255 1005231 6545231 3852085 7576651 7881200 4581002 The Charge Account Validation Problem These numbers should be stored in an array. Use either a sequential search or a binary search to locate the number passed as an argument. If the number is in the array, the method should return true , indicating the number is valid. If the number is not in the array, the method should return false , indicating the number is invalid. Write a program that tests the class by asking the user to enter a charge account number. The program should display a message indicating whether the number is valid or invalid.I need to know how to even start, a little aid please?
Explanation / Answer
import java.util.Scanner; public class ChargeAccountValidation { private static int[] validNumbers = {5658845, 4520125, 7895122, 8777541, 8451277, 1302850, 8080152, 4562555, 5552012, 5050552, 7825877, 1250255, 1005231, 6545231, 3852085, 7576651, 7881200, 4581002}; public static void main(String[] args) { Scanner scanner = new Scanner(System.in); System.out.print("Enter a number to validate: "); int number = scanner.nextInt(); if (isValid(number)) { System.out.println(" This number is VALID! "); } else System.out.println(" This number is INVALID! "); } public static boolean isValid(int number) { boolean flag = false; for(int x: validNumbers) { if (number == x) { flag = true; break; } } return flag; } }