JAVA (GUI) project: ATM MAchine You have two text file 1. AccountInformation.txt
ID: 3853296 • Letter: J
Question
JAVA (GUI) project:
ATM MAchine
You have two text file
1. AccountInformation.txt: will contain the Account informations. Formate of the file will be
-account number
-last name
-first name
-balance atm access status: active/disable
2. Password.txt : will contain the login information. Format of the file will be
AccountNumber password
At first do the Login then show the menus .
You have to implement all this functionality. For each button click open a new user interface to get the appropriate data and show the result. If a user clicks on the button “Make a Transfer” you should show a GUI that has the account number and amount to transfer. You are free to add more functionality.
Important: Please note that all term projects are questions. In other words, you are free functionally and improve the user interfaces.
Account Number: Password: Login Deposit withdraw Check Balance Make a Transfer Change Password LogoutExplanation / Answer
import java.util.*;
public class ATM {
public static Scanner kbd = new Scanner(System.in);
".
public static String checkID(String acctNum, String pwd)
{
String result = "error";
String a = "44567-5 mypassword 520.36";
String b = "1234567-6 anotherpassword 48.20";
String c = "4321-0 betterpassword 96.74";
if (acctNum.equals(a.substring(0, a.indexOf(" "))) &&
pwd.equals(a.substring(a.indexOf(" ")+1,a.lastIndexOf(" "))))
return result = a.substring(a.lastIndexOf(" ") + 1);
if (acctNum.equals(b.substring(0, b.indexOf(" "))) &&
pwd.equals(b.substring(b.indexOf(" ")+1,b.lastIndexOf(" "))))
return result = b.substring(b.lastIndexOf(" ") + 1);
if (acctNum.equals(c.substring(0, c.indexOf(" "))) &&
pwd.equals(c.substring(c.indexOf(" ") + 1,c.lastIndexOf(" "))))
return result = c.substring(c.lastIndexOf(" ") + 1);
return result;
}
public static int menu()
{
int menuChoice;
do
{
System.out.print(" Please Choose From the Following Options:"
+ " 1. Display Balance 2. Deposit"
+ " 3. Withdraw 4. Log Out ");
menuChoice = kbd.nextInt();
if (menuChoice < 1 || menuChoice > 4){
System.out.println("error");
}
}while (menuChoice < 1 || menuChoice > 4);
return menuChoice;
}
public static void displayBalance(double x)
{
System.out.printf(" Your Current Balance is $%.2f ", x);
}
public static double deposit(double x, double y)
{
double depositAmt = y, currentBal = x;
double newBalance = depositAmt + currentBal;
System.out.printf("Your New Balance is $%.2f ", newBalance);
return newBalance;
}
public static double withdraw(double x, double y)
{
double withdrawAmt = y, currentBal = x, newBalance;
newBalance = currentBal - withdrawAmt;
System.out.printf("Your New Balance is %.2f ",newBalance);
return newBalance;
}
public static void main(String[] args) {
String accNum, pass, origBal = "error";
int count = 0, menuOption = 0;
double depositAmt = 0, withdrawAmt = 0, currentBal=0;
boolean foundNonDigit;
do{
foundNonDigit = false;
System.out.println("Please Enter Your Account Number: ");
accNum = kbd.next();
System.out.println("Enter Your Password: ");
pass = kbd.next();
origBal = checkID(accNum, pass);
count++;
if (count >= 3 && origBal.equals("error")){
System.out.print("Maximum Login Attempts Reached.");
System.exit(0);
}
if (!(origBal.equals("error"))){
System.out.println(" Your New Balance is: $ "+ origBal);
}
else
System.out.println(origBal);
}while(origBal.equals("error"));
currentBal=Double.parseDouble(origBal);
while (menuOption != 4)
{
menuOption=menu();
switch (menuOption)
{
case 1:
displayBalance(currentBal);
break;
case 2:
System.out.print(" Enter Amount You Wish to Deposit: $ ");
depositAmt = kbd.nextDouble();
currentBal=deposit(depositAmt, currentBal);
break;
case 3:
System.out.print(" Enter Amount You Wish to Withdrawl: $ ");
withdrawAmt = kbd.nextDouble();
while(withdrawAmt>currentBal){
System.out.print("ERROR: INSUFFICIENT FUNDS!! "
+ "PLEASE ENTER A DIFFERENT AMOUNT: $");
withdrawAmt = kbd.nextDouble();
}
currentBal = withdraw(currentBal, withdrawAmt);
break;
case 4:
System.out.print(" Thank For Using My ATM. Have a Nice Day. Good-Bye!");
System.exit(0);
break;
}
}
}
}
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