Thread: ATM Program

Basically I'm having trouble getting started on my programming assignment because i've never used loops and pointers together so my brain is crying for help (I posted my project word file).

We have to make an ATM system using loops and pointers.

My teacher said we could complete this in like 2 days with only two pages of code, but I don't believe her >.>

So if anyone could be my angel and assist me with this that would be just perfect.

Code:

//This is my code so far. Now I just need help figuring out how to use the loops and pointers

#include <stdio.h>
#include <math.h>
#include <ctype.h>


// Displays the list of options available
//prompts for the user’s selection and sets the value of the selection
void mainMenu(int *option);


//Asks the user if they want another transaction
void Keepgoing(char *goagain);


//Asks the user which type of account they would like to access and sets the 
//value of the selection
void AccountMenu( char *acctType);


//Prompts the user for the amount of deposit and updates the selected account 
void MakeDeposit( double *balance);


//Prompts the user for the amount of the withdrawal, determines if there are 
//sufficient funds and updates the selected account if funds are dispensed 
void MakeWithdrawal( double *balance, char acctType);


//Displays the user’s current account balance for the selected account
void GetBalance( double balance);


int main()
{
    void mainMenu();
}




void mainMenu(int *option)
{
    int choice;
    printf("1. Check Balance\n");
    printf("2. Withdraw Cash\n");
    printf("3. Deposit Cash\n");
    printf("4. Transer\n");
    printf("Enter your choice: ");
    scanf("%d",&choice);
}




void Keepgoing(char *goagain);




void AccountMenu( char *acctType);




void MakeDeposit( double *balance);




void MakeWithdrawal( double *balance, char acctType);




void GetBalance( double balance);

I'm pretty some sort of loop belongs here. Because after one thing is done it's
going to want to know if you want to do something else or just quit.

Code:

void Keepgoing(char *goagain)
{
	printf("Would you like to do another transcation?");
	printf("y/n?");
	scanf(" %d", &goagain);
}

Ok this is what I have so far. I've compiled my code and the menu system ran perfectly.

Code:

#include <stdio.h>
#include <math.h>
#include <ctype.h>


// Displays the list of options available
//prompts for the user’s selection and sets the value of the selection
void mainMenu(int *option);


//Asks the user if they want another transaction
void Keepgoing(char *goagain);


//Asks the user which type of account they would like to access and sets the 
//value of the selection
void AccountMenu( char *acctType);


//Prompts the user for the amount of deposit and updates the selected account 
void MakeDeposit( double *balance);


//Prompts the user for the amount of the withdrawal, determines if there are 
//sufficient funds and updates the selected account if funds are dispensed 
void MakeWithdrawal( double *balance, char acctType);


//Displays the user’s current account balance for the selected account
void GetBalance( double balance);


int main()
{
	int choice;

	char again,
		account;


	mainMenu(&choice);


	AccountMenu(&account);


	Keepgoing(&again);


	return 0;
}




void mainMenu(int *option)
{
	printf("Welcome to Regional South Bank.\n\n");
	printf("Please choose from the following.\n\n");
	printf("1. Check Balance\n");
        printf("2. Withdraw Cash\n");
        printf("3. Deposit Cash\n");
        printf("4. Transfer\n");
        printf("\nEnter your choice:");
        scanf_s("%d",option);
}




void Keepgoing(char *goagain)
{
	printf("\nWould you like to do another transcation?\n");
	printf("\nChoose y/n:");
	scanf_s(" %c",goagain);
}




void AccountMenu(char *acctType)
{
	printf("\nWhich account would like to access?\n");
	printf("\nC for Checking\n");
	printf("\nS for Savings\n");
	printf("\nE for Credit\n");
	printf("\nChoose an account:");
	scanf_s(" %c", acctType);
}




void MakeDeposit( double *balance);




void MakeWithdrawal( double *balance, char acctType);




void GetBalance( double balance);