using System;
using System.IO;
 
namespace atm
{
	class Class1
	{
		const string DATAFILE = "balance.txt";
 
		[STAThread]
		static void Main(string[] args)
		{
			double myBal = GetBalance(DATAFILE);
			Console.WriteLine("My balance is: {0}",myBal);
 
			//TODO: Prompt user for action, withdrawl or deposit... obtain amount.
			// 1) Withdrawal or Deposit?
			// 2) How much?
 
			 //TODO: Deposit:
			// 1) Call GetBalance, assign the returned value to a variable.
			// 2) Add the user defined amount to the current balance.
			// 3) Set balance in DATAFILE (create a SetBalance method (write to file)).
 
			//TODO: Withdrawal:
			// 1) Call GetBalance, assign the returned value to a variable.
			// 2) Check to see if sufficient funds are available.
			// 3) If funds available, subtract from available balance.
			// 4) Set balance in DATAFILE (create a SetBalance method (write to file)).
 
		}
 
		static double GetBalance(string DATAFILE)
		{
			StreamReader SR;
			string data;
			double balance = 0.0;
 
			SR=File.OpenText(DATAFILE);
			data=SR.ReadLine();
			SR.Close();
 
			balance = Convert.ToDouble(data);
			return balance;
		}
 
	}
}