C Program to Display the ATM Transaction.

 

#include <stdio.h> 

unsigned long amount=1000, deposit, withdraw;

int choice, pin, k;

char transaction ='y';

void main()

{

 while (pin != 1520)

 {

  printf("ENTER YOUR SECRET PIN NUMBER:");

  scanf("%d", &pin);

  if (pin != 1520)

  printf("PLEASE ENTER VALID PASSWORD\n");

 }

 do

 {

  printf("********Welcome to ATM Service**************\n");

  printf("1. Check Balance\n");

  printf("2. Withdraw Cash\n");

  printf("3. Deposit Cash\n");

  printf("4. Quit\n");

  printf("******************?**************************?*\n\n");

  printf("Enter your choice: ");

  scanf("%d", &choice);

  switch (choice)

  {

  case 1:

   printf("\n YOUR BALANCE IN Rs : %lu ", amount);

   break;

  case 2:

   printf("\n ENTER THE AMOUNT TO WITHDRAW: ");

   scanf("%lu", &withdraw);

   if (withdraw % 100 != 0)

   {

    printf("\n PLEASE ENTER THE AMOUNT IN MULTIPLES OF 100");

   }

   else if (withdraw >(amount - 500))

   {

    printf("\n INSUFFICENT BALANCE");

   }

   else

   {

    amount = amount - withdraw;

    printf("\n\n PLEASE COLLECT CASH");

    printf("\n YOUR CURRENT BALANCE IS%lu", amount);

   }

   break;

  case 3:

   printf("\n ENTER THE AMOUNT TO DEPOSIT");

   scanf("%lu", &deposit);

                        amount = amount + deposit;

   printf("YOUR BALANCE IS %lu", amount);

   break;

  case 4:

   printf("\n THANK U USING ATM");

   break;

  default:

   printf("\n INVALID CHOICE");

  }

  printf("\n\n\n DO U WISH TO HAVE ANOTHER TRANSCATION?(y/n): \n");

  fflush(stdin);

  scanf("%c", &transaction);

  if (transaction == 'n'|| transaction == 'N')

                    k = 1;

 } while (!k);

 printf("\n\n THANKS FOR USING OUT ATM SERVICE");

}