ATM.cpp

#include <stdio.h>
#include <stdlib.h>
#include <stdbool.h>
#include <math.h>
//Functions
void login();
void mainMenu();
void checkBalance(float balance);
float moneyDeposit(float balance);
float moneyWithdraw(float balance);
void menuExit();
void errorMessage();
//Main Code
int main() {
    //Local Declarations
    int option,pin;
    float balance = 15000.00;
    int choose;
    bool again = true;
    // insert code here...
    while (pin != 1520)
	{
		printf("ENTER YOUR SECRET PIN NUMBER:");
		scanf("%d", &pin);
		if (pin != 1520)
		printf("PLEASE ENTER VALID PASSWORD\n");
	}
    while (again) {
    mainMenu();
    printf("=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-\n");
    printf("Your Selection:\t");
    scanf("%d", &option);
        switch (option) {
            case 1:
            	system("CLS");
                checkBalance(balance);
                break;
            case 2:
            	system("CLS");
                balance = moneyDeposit(balance);
                break;
            case 3:
            	system("CLS");
                balance = moneyWithdraw(balance);
                break;
            
            case 4:
            	system("CLS");
                menuExit();
                return 0;  
            default:
                errorMessage();
                break;
        }
        printf("=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=\n");
        printf("Would you like to do another transaction:\n");
        printf("< 1 > Yes\n");
        printf("< 2 > No\n");
        scanf("%d", &choose);
        system("CLS");
        if (choose == 2) 
		{
            again = false;
            menuExit();   
        }   
} 
    return 0;
}//main code
//Functions
void mainMenu() {
    printf("******************Hello!*******************\n");
    printf("**********Welcome to ATM Banking***********\n\n");
    printf("****Please choose one of the options below****\n\n");
    printf("< 1 >  Check Balance\n");
    printf("< 2 >  Deposit\n");
    printf("< 3 >  Withdraw\n");
    printf("< 4 >  Exit\n\n");  
}//Main Menu
void checkBalance(float balance) 
{
    printf("You Choose to See your Balance\n");
    printf("\n\n****Your Available Balance is:   $%.2f\n\n", balance); 
}//Check Balance
float moneyDeposit(float balance) 
{
    float deposit;
    printf("You choose to Deposit a money\n");
    printf("$$$$Your Balance is: $%.2f\n\n", balance);
    printf("****Enter your amount to Deposit\n");
    scanf("%f", &deposit);
    balance += deposit;
    printf("\n****Your New Balance is:   $%.2f\n\n", balance);
    return balance;
}//money deposit
float moneyWithdraw(float balance) 
{
    float withdraw;
    bool back = true;
    printf("You choose to Withdraw a money\n");
    printf("$$$$Your Balance is: $%.2f\n\n", balance);
    while (back) {
    printf("Enter your amount to withdraw:\n");
    scanf("%f", &withdraw);
    if (withdraw < balance) {
        back = false;
        balance -= withdraw;
        printf("\n$$$$Your withdrawing money is:  $%.2f\n", withdraw);
        printf("****Your New Balance is:   $%.2f\n\n", balance);
    }
        else  
		{
        printf("+++You don't have enough money+++\n");
        printf("Please contact to your Bank Customer Services\n");
        printf("****Your Balance is:   $%.2f\n\n", balance);
    
    	}
    }
    return balance;    
}
void menuExit() 
{
    printf("--------------Take your receipt!!!------------------\n");
    printf("-----Thank you for using ATM Banking Machine!!!-----\n");
}
void errorMessage() {;
    printf("+++!!!You selected invalid number!!!+++\n");
}