How to make ATM program in C language
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#include <stdio.h>
unsigned long amount = 1000, deposit, withdraw;
int choice, pin, k;
char transaction = 'y';
void main()
{
while (pin != 1137)
{
printf("ENTER YOUR SECRET PIN NUMBER:");
scanf("%d", & pin);
if (pin != 1137)
printf("PLEASE ENTER VALID PASSWORD! \a\n");
}
do
{
printf("\n********Welcome to M V Bank 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 IS ₹ : %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 YOU FOR USING XYZ Bank 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 XYZ Bank ATM SERVICE");
}
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