# 3. Charge Account Validation Create a class with a method that accepts a charge account…

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3. 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 or an ArrayList object. Use a sequential 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.

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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 8080152 1005231 4520125 4562555 6545231 7895122 5552012 3852085 8777541 5050552 7576651 8451277 7825877 7881200 1302850 1250255 4581002 VideoNote The Charge Account Validation Problem These numbers should be stored in an array or an ArrayList object. Use a sequential 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.

## Expert Answer

answers

ChargeAccountValidation.java

import java.util.ArrayList;
import java.util.Scanner;

public class ChargeAccountValidation {

public static void main(String[] args) {
//Declaring variables
int number;

//Declaring an ArrayList which holds integers
ArrayList < Integer > nos = new ArrayList < Integer > ();
nos.add(5658845);
nos.add(4520125);
nos.add(7895122);
nos.add(8777541);
nos.add(8451277);
nos.add(1302850);
nos.add(8080152);
nos.add(4562555);
nos.add(5552012);
nos.add(5050552);
nos.add(7825877);
nos.add(1250255);
nos.add(1005231);
nos.add(6545231);
nos.add(3852085);
nos.add(7576651);
nos.add(7881200);
nos.add(4581002);

/*
* Creating an Scanner class object which is used to get the inputs
* entered by the user
*/
Scanner sc = new Scanner(System.in);

//Getting the input entered by the user
System.out.print(“Enter a Charge Account Number :”);
number = sc.nextInt();
if (validateChargeAccount(nos, number)) {
System.out.println(“The Charge Account is Valid.”);
} else {
System.out.println(“The Charge Account is In-Valid.”);
}

}

//This method will check whether the user entered charge Number is valid or not
private static boolean validateChargeAccount(ArrayList < Integer > nos,
int number) {
for (int i = 0; i < nos.size(); i++) {
if (nos.get(i) == number) {
return true;
}
}
return false;
}

}

_______________________

Output#1:

Enter a Charge Account Number :5050552
The Charge Account is Valid.

_______________________

Output#2:

Enter a Charge Account Number :4562444
The Charge Account is In-Valid.

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