Program Explanation Program: Validator.java: //Import required packages import java.util.Scanner; import java.io.*; //Declare the class public class Validator { //Declare the array private int[] valid = new int[18]; //Constructor public Validator(String filename) throws IOException { //Declare a variable int i = 0; //Open the file File myFile = new File(filename); //Create an object for scanner class Scanner sc = new Scanner(myFile); //Read the file while (sc.hasNext()) { //Store the values into the array valid[i] = sc.nextInt(); //Increment the variable i++; } // Close the file. sc.close(); } //Function to check the account number is valid public boolean is_Valid(int number) { // Declare a boolean variable boolean found = false; //Declare a variable int index = 0; //Do until the condition is true while (!found && index < valid.length) { //Check if the index in equal to number if (valid[index] == number) //Assign true found = true; //Else else //Increment the variable index++; } //Return the status return found; } } Main...

MyLab Programming with Pearson eText -- Access Code Card -- for Starting Out with Java: From Control Structures through Objects

7th Edition

ISBN: 9780134793672

Author: GADDIS

Publisher: PEARSON

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MyLab Programming with Pearson eText -- Access Code Card -- for Starting Out with Java: From Control Structures through Objects

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