Automatic Teller Machine Simulation in Scala

 Machine Problem

Create and design a program that simulates an Automatic Teller Machine. The money  bill to be used in the program will be 1000,500,200 and 100 money bill denomination.

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Program Listing

/* atm.scala

   Prof. Jake Rodriguez Pomperada, MAED-IT, MIT

   www.jakerpomperada.blogspot.com and www.jakerpomperada.com

   jakerpomperada@gmail.com

   January 8, 2022  7:58 PM Saturday

   Bacolod City, Negros Occidental

 */

import java.util.Scanner;

object  atm {

def main(args: Array[String]) : Unit = {

    var scanner = new Scanner(System.in);

       var bill1000=0; var bill500=0; var bill200=0; var bill100=0; 

       var total_balance=0; var withdraw=0; var money_left=0;

       var receive1000=0; var receive500=0; var receive200=0; var receive100=0;

       var withdraw_again='n';

 do

{

    print("\n");

    print("\tAutomatic Teller Machine Simulation in Scala");

        print("\n\n");  

    print("\tHow many P1000 bills: ");

        bill1000 = scanner.nextInt();

print("\tHow many P500 bills: ");

bill500 = scanner.nextInt();

        print("\tHow many PHP 200 bills: ");

bill200 = scanner.nextInt();

        print("\tHow many PHP 100 bills: ");

bill100 = scanner.nextInt();

        total_balance = (bill1000 * 1000)+(bill500 * 500) + (bill200 * 200) +  (bill100 * 100) ;

    print("\n\n");

        print("\tTotal Balance: PHP " + total_balance);

         print("\n\n");

print("\tEnter amount to withdraw: PHP ");

withdraw = scanner.nextInt();

 

         money_left = withdraw ;

if  (withdraw > total_balance)

{

print("\tWithdraw amount greater than total balance.  ");

print("\n");

}

if (withdraw < total_balance)

{

if  (money_left >= 1000 )

{

receive1000 = (money_left / 1000);

if (receive1000 > bill1000 ) receive1000 = bill1000;

money_left = money_left - (receive1000 * 1000);

bill1000 = bill1000 - receive1000;

}

if  (money_left >= 500 )

{

receive500 = (money_left / 500);

if (receive500 > bill500 ) receive500 = bill500;

money_left = money_left - (receive500 * 500);

bill500 = bill500 - receive500;

}

if (money_left >= 200 )

{

receive200 = (money_left / 200);

if (receive200 > bill200 ) receive200 = bill200;

money_left = money_left - (receive200 * 200);

bill200 = bill200 - receive200;

}

if (money_left >= 100 )

  {

receive100 =(money_left / 100);

if (receive100 > bill100 ) receive100 = bill100;

money_left = money_left - (receive100 * 100);

bill100 = bill100 - receive100;

}

print("\n\n");

print("\tYou will receive:");

print("\n\n");

print("\tPHP 1000 bill :=>  " + receive1000);

print("\n");

print("\tPHP 500 bill :=>   " + receive500);

print("\n");

print("\tPHP 200 bill :=>   " + receive200);

print("\n");

print("\tPHP 100 bill :=>   " + receive100);

print("\n\n");

total_balance = total_balance - withdraw;

print("\tYour current balance is: PHP "  + total_balance);

print("\n\n");

print("\tYou only have balance of:");

print("\n\n");

print("\tPHP 1000 bill :=>  " +  bill1000);

print("\n");

print("\tPHP 500 bill  :=>  "  + bill500);

print("\n");

print("\tPHP 200 bill  :=>  "  + bill200);

print("\n");   

print("\tPHP 100 bill  :=>  "  + bill100)

                print("\n\n");

printf("\tAnother Withdraw Again ? Y/N : ");

        withdraw_again  = scala.io.StdIn.readChar()

}  

}  while (withdraw_again.toUpper == 'Y'); 

    print("\n");

                print("\tEnd of Program");

                print("\n\n");

 

       }

}