Question

I need to add two trivial functions to the following code. I am having an issue with what i may need to change in the current code to meet the requirements. I am already displaying the bank record but now using a function

Here are some examples of what i can add to the code

1. Obtain opening (current) balance.

2. Obtain number the number of deposits.

3. Obtain number of withdrawals.

4. Obtain deposit amounts.

5. Obtain withdrawal amounts.

Output functions:

1. Display closing balance and associated message.

2. Display message based on closing balance.

3. Display bank record.

#include <stdio.h>
void main (void)
{

/* Declare variables */
/*-------------------*/
int num_deposit = 0, i, s;

int num_withdrawal = 0;

float current_balance;

float ending_balance;

float total_deposit = 0;

float deposit[5];

float withdrawals[5];

  

/* Intro and greeting to user. Allows starts the input sequence for the user */
/*---------------------------------------------------------------------------*/
printf("Welcome to the Computer Banking System \n\n");

printf("Enter your current balance in dollars and cents: ");

scanf("%f", &current_balance);

while(current_balance < 0)

{

printf("*** Beginning balance must be at least zero, please re-enter!");

printf("Now enter current balance in dollars and cents: ");

scanf("%f", &current_balance);

  

}

printf("\nEnter the number of deposits: ");

scanf("%d", &num_deposit);

  

while(num_deposit < 0||num_deposit>5)

{

printf("\n*** Invalid number of deposits must be at least zero,");

printf("please re-enter.\n");

printf("Enter the number of deposits: ");

scanf("%d", &num_deposit);

  

}

printf("\nEnter the number of withdrawals: ");

scanf("%d", &num_withdrawal);

while(num_withdrawal < 0||num_withdrawal>5)

{

printf("*** Invalid number of withdrawals must be at least zero,please re-enter.\n");

printf("Enter the number of withdrawals: ");

scanf("%d", &num_withdrawal);

  

}

for(i = 0; i < num_deposit; i++)

{

printf("\nEnter the amount of deposit #%d: ", i+1);

scanf("%f", &deposit[i]);

while(deposit[i]<0)

{

printf("*** deposit amount must be at least zero\n");

printf("please re-enter.\n");

printf("\nEnter the amount of deposit #%d: ", i+1);

scanf("%f", &deposit[i]);

}

total_deposit+=deposit[i];

  

}

for(i = 0; i < num_withdrawal; i++)

{

printf("\nEnter the amount of withdrawal #%d: ", i+1);

scanf("%f", &withdrawals[i]);

while(withdrawals[i]<0)

{

printf("*** withdrawal amount must be at least zero\n");

printf("please re-enter.\n");

printf("\nEnter the amount of withdrawal #%d: ", i+1);

scanf("%f", &withdrawals[i]);

}

if(withdrawals[i]>(current_balance+total_deposit))

{

printf("*** Withdrawal amount exceeds current balance. ***\n");
  

}

else

total_deposit -=withdrawals[i];

/* gives user their total, along with some financial advice or statements */
/*------------------------------------------------------------------------*/

}

ending_balance= current_balance+total_deposit;

printf("The closing balance is %.2f\n",ending_balance);
  
if(ending_balance>=50000)

printf("*** it is time to invest some money***\n");

else if(ending_balance>=15000)

printf("*** maybe you should consider a CD. ***\n");

else if(ending_balance>=1000)

printf("*** keep up the good work. ***\n");

else if(ending_balance>=0)
  
printf("*** your balance is getting low. ***\n");
  
/* Provides a bank record or statement. Providing totals*/
/*------------------------------------------------------*/

printf("***** Bank Record ******\n");

printf("Starting Balance $%.2f\n\n",current_balance);

for(i = 0; i < num_deposit; i++)

{

printf("Deposit #%d : $%.2f\n",i+1,deposit[i]);

}

printf("\n");

for(i = 0; i < num_withdrawal; i++)

{

printf("Withdrawal #%d : $%.2f\n",i+1,withdrawals[i]);

}

printf("\n");

printf("Ending balance :$%.2f\n",ending_balance);

printf("\n");

}

//end main

Answer 1

// C program to implement Computer Banking System

#include <stdio.h>

// input functions
float getCurrentBalance();
int getNumberOfDeposits();
int getNumberOfWithdrawals();
float getDepositAmount(int i);
float getWithdrawalAmount(int i,float balance);

// output functions
void displayClosingBalanceAndMessage(float balance);
void displayBankRecord(float startingBalance, float currentBalance, int numOfDeposits, int numOfWithdrawals, float deposits[], float withdrawals[]);

void main(void) {

   /* Declare variables */
   /*-------------------*/
   int x, numberOfDeposits, numberOfWithdrawals;
   float deposits[5], withdrawals[5];
   float currentBalance, startingBalance;;
   float totalDeposits = 0, totalWithdrawals = 0;

   /* Intro and greeting to user. Allows starts the input sequence for the user */
   /*---------------------------------------------------------------------------*/
   printf("Welcome to the Computer Banking System.\n\n");
   currentBalance= getCurrentBalance();
   startingBalance = currentBalance;
   numberOfDeposits = getNumberOfDeposits();
   numberOfWithdrawals = getNumberOfWithdrawals();
   printf("\n");

   /* add the deposits entered */
   for (x = 1; x <= numberOfDeposits; x++)
   {

       deposits[x-1] = getDepositAmount(x);
       /* sum of total deposits */
       totalDeposits = totalDeposits + deposits[x-1];
   }

   currentBalance = currentBalance + totalDeposits;

   printf("\n");

   /* number of withdrawals */
   for (x = 1; x <= numberOfWithdrawals; x++)
   {
       /* total withdrawal sum */
       withdrawals[x-1] = getWithdrawalAmount(x,currentBalance);
       totalWithdrawals = totalWithdrawals + withdrawals[x-1];

       /* balance calculation */
       currentBalance = currentBalance - withdrawals[x-1];
       if (currentBalance == 0.00f)
       {

           /* zero balance error message */
           printf ("\n *** Balance is now zero. No more withdrawals can be made at this time. ***\n");
           numberOfWithdrawals = x;
           break;
       }
   }

   displayClosingBalanceAndMessage(currentBalance);
   displayBankRecord(startingBalance,currentBalance,numberOfDeposits,numberOfWithdrawals, deposits,withdrawals);

}

// function to get and return the current balance from user
float getCurrentBalance()
{
   float balance;
   do{
       /* prompts the user to enter current balance */
       printf ("Enter your current balance in dollars and cents: ");
       scanf ("%f",&balance);

       /* error message if current balance less than 0 */
       if (balance < 0)
           printf ("*** Beginning balance must be at least zero, please re-enter.\n");
   }
   /* this will end the loop if current balance is less than 0 */
   while (balance < 0);

   return balance;
}

// function to get and return the number of deposits from the user
int getNumberOfDeposits()
{
   int numOfDeposits;
   do
   {

       /* prompts for user to enter number of deposits */
       printf ("\nEnter the number of deposits (0 - 5): ");
       scanf ("%d",&numOfDeposits);

       /* a loop starts limiting the user on number of deposits */
       if (numOfDeposits < 0 || numOfDeposits > 5)
           printf ("*** Invalid number of deposits, please re-enter.\n");
   }
   /* if amount of deposits is between 0 and 5 loop will terminate */
   while (numOfDeposits < 0 || numOfDeposits > 5);

   return numOfDeposits;
}

// function to get and return the number of withdrawals from the user
int getNumberOfWithdrawals()
{
   int numOfWithdrawals;
   do
   {

       /* prompts user to enter number of withdrawals */
       printf ("\nEnter the number of withdrawals (0 - 5): ");
       scanf ("%d",&numOfWithdrawals);

       /* error message if amount is less than 0 or over 5 */
       if (numOfWithdrawals < 0 || numOfWithdrawals > 5)
           printf ("*** Invalid number of withdrawals, please re-enter.\n");
   }
   /* loop will terminate if amount is between 0 and 5 */
   while (numOfWithdrawals < 0 || numOfWithdrawals > 5);

   return numOfWithdrawals;
}

// function to get and return xth deposit amount from user
float getDepositAmount(int x)
{
   float amount;
   do
   {
       /* prompt to enter amount of each deposit */
       printf ("Enter the amount of deposit #%d: ", x);
       scanf ("%f",&amount);

       /* loop continues until amount is 0 or greater */
       if (amount < 0)
           printf ("*** Deposit amount must be at least zero, please re-enter.\n");
   }
   while (amount < 0);

   return amount;
}

// function to get and return xth withdrawal amount from user
float getWithdrawalAmount(int x, float balance)
{
   float amount;
   do
   {
       /* prompt for user to enter amount of each withdrawal */
       printf ("Enter the amount of withdrawal #%i: ", x);
       scanf ("%f",&amount);

       /* error message if withdrawal exceeds current balance */
       if (amount > balance)
           printf ("*** Withdrawal amount exceeds current balance.\n");
       else
           /* error message if amount is less than 0 */
           if (amount < 0)
               printf ("*** Withdrawal amount must be at least zero, please re-enter.\n");
   }
   /* loop ends when amount greater than 0 */
   while (amount > balance || amount < 0);

   return amount;
}

// function to display the closing balance and message depending on the closing balance
void displayClosingBalanceAndMessage(float balance)
{
   /* various final display messages */
   printf ("\n*** The closing balance is $%.2f *** \n", balance);

   if (balance >= 50000.00)
       printf ("*** It is time to invest some money! *** \n\n");
   else if (balance >= 15000.00)
       printf ("*** Maybe you should consider a CD. *** \n\n");
   else if (balance >= 1000.00)
       printf ("*** Keep up the good work! *** \n\n");
   else
       printf ("*** Your balance is getting low! *** \n\n");
}

// function to display all the details of the bank account, the starting balance, the transactions (deposit and withdrawal) and ending balance
void displayBankRecord(float startingBalance, float currentBalance, int numOfDeposits, int numOfWithdrawals, float deposits[], float withdrawals[])
{
   int x;
/* bank record */
   printf (" *** Bank Record ***\n");
   printf ("\nStarting Balance: $%.2f\n\n", startingBalance);
   for (x = 1; x <= numOfDeposits; x++)
   {
       printf ("Deposit #%x: %.2f\n", x, deposits[x-1]);
   }

   printf("\n");

   for ( x = 1; x<= numOfWithdrawals; x++)
   {
       printf ("Withdrawal #%i: %.2f\n", x, withdrawals[x-1]);
   }
   printf ("\nEnding Balance: $%.2f\n\n", currentBalance);

}

//end of program