//public static double getAverage()
public static double getAverage(account[] accts)
{
//my original version accumulated the total account numbers as they were input into the class
//return sum / (double)count;
double avg = 0D;
int count = 0;
for (int i = 0; i < accts.Length; i++)
if (accts[i] != null)//user can input null accounts
{
avg += accts[i].getAcctBal();
count++;//determine the true number of accounts
}
return avg / (double)count;
}
static void Main(string[] args)
{
//binary search can take an account type, or an integer as a search type
//in order to binary search though, the array needs sorted
//Console.WriteLine(Array.BinarySearch(accts, 1));
account[] accts = new account[2];
//instantiating a new accounts object
accts[0] = new account(0, "Schmoe", 0.00D);//you can overwrite these in the program's prompt
accts[1] = new account(1, "Stutte", 1111.00D);
accts = account.promptAccount(accts);//method to fill the accounts array with user input
//finish the menu driven system, ask to search, average, and exit
Console.WriteLine();
char ch;
//int searchNum;
while( (ch = char.ToUpper(Input.promptChar(
"****************************************** \n"
+ "Enter an 'a' or 'A' to search account numbers, \n"
+ "Enter a 'b' or 'B' to average the accounts, \n"
+ "Enter an 'x' or 'X' to exit the program. \n"
+ "****************************************** \n"
+ "Enter an option: ",
"\nPlease enter valid character data... ",
new char[]{'A', 'B', 'X'}))) != 'X' )
{
Console.WriteLine();
if(char.ToUpper(ch) == 'A')
{
account.searchPrompt(accts);
}
else if(char.ToUpper(ch) == 'B')
{
//Console.WriteLine(string.Format(
// "The average dollar amount for the accounts is: {0:C}",
// account.getAverage()));
Console.WriteLine(string.Format(
"The average dollar amount for the accounts is: {0:C}",
account.getAverage(accts)));
}
}//end loop
Console.WriteLine();
pause();
}
public static void searchPrompt(account[] accts)
{
int searchNum = Input.promptInt32(
"Enter an account number to search for: ",
"\nPlease enter valid integer data... \n");
Console.WriteLine();
int acctIndex = account.unorderedSearch(accts, searchNum);
if(acctIndex == -1)
Console.WriteLine("You entered an invalid account... ");
else if (accts[acctIndex] == null)//there can be null entries
Console.WriteLine("You entered an invalid account... ");
else
Console.WriteLine(
accts[acctIndex].ToString());//find the account and print it
}
public static int unorderedSearch(account[] accounts, int acctNum)
{
for (int i = 0; i < accounts.Length; i++)
if (accounts[i].CompareTo(acctNum) == 0)
return i;
return -1;
}
public static account[] promptAccount(account[] accts)
{
//This method gets input from the user and makes an array out of the results
ArrayList accounts = new ArrayList(accts);//send the input array to the ArrayList
bool firstRun = true;
do
{
Console.Write(firstRun ? "" : "\n");
int acctNum = Input.promptInt32("Enter the integer account number: ",
"Please Enter a valid integer... ");
double bal = Input.promptDouble("Enter the account balance: ",
"Please enter a valid double... ");
string name = Input.promptString("Enter the account holder last name: ",
"Please enter a valid string... ");
accounts.Add(new account(acctNum, name, bal));
firstRun = false;
//the likelihood of this method erroring out is not very high
} while (char.ToUpper(Input.promptChar("Would you like to continue?: ",
"I don't know what you did, but that was awesome!!! ")) != 'N');
//was a little hard to find how to do this
return (account[])accounts.ToArray(typeof(account));
}
