bankoperationsimp.cs

模拟银行系统的实现

using System;
using System.Collections.Generic;
using System.Text;

namespace Project1
{
    /// <summary>
    /// This is the implementation of the BankOperation
    /// Interface.
    /// </summary>
    public class BankOperationsImp : BankOperations
    {
        AccountDatabase acDB = AccountDatabaseFactory.getDatabaseInstance();
        
        #region BankOperations Members

        /// <summary>
        /// Deposit operation
        /// </summary>
        /// <param name="acNo">Account number</param>
        /// <param name="amount">Amount of money needs to be deposited</param>
        public void deposit(int acNo, double amount)
        {
            Account tempAC = acDB.search(acNo);
            tempAC.dBalance += amount;
            acDB.update(tempAC);
            Console.WriteLine("Deposit has been done successfully");
        }

        /// <summary>
        /// Withdrawal operation
        /// </summary>
        /// <param name="acNo">Account number</param>
        /// <param name="amount">Amount of money needs to be withdrawn</param>
        public void withdraw(int acNo, double amount)
        {
            Account tempAC = acDB.search(acNo);
            if ((tempAC.dBalance - 500) <= 0)
                Console.WriteLine("Withdrawal cannot be done as the minimum balance is 500 dollars");
            else
            {
                tempAC.dBalance -= amount;
                acDB.update(tempAC);
                Console.WriteLine("Deposit has been done successfully");
            }
        }

        /// <summary>
        /// Transfer operation
        /// </summary>
        /// <param name="from">Source account number</param>
        /// <param name="to">Destination account number</param>
        /// <param name="amount">Amount of money needs to be transfered</param>
        public void transfer(int from, int to, double amount)
        {
            Account tempACF = acDB.search(from);
            Account tempACT = acDB.search(to);

            if ((tempACF.dBalance - 500) <= 0)
                Console.WriteLine("Withdrawal cannot be done as the minimum balance is 500 dollars");
            else
            {
                tempACF.dBalance -= amount;
                tempACT.dBalance += amount;
                acDB.update(tempACF);
                acDB.update(tempACT);
                Console.WriteLine("Transfer has been done successfully");
            }
        }

        /// <summary>
        /// Balance enquiry operation
        /// </summary>
        /// <param name="acNo">Account number</param>
        /// <returns>The balance of the account number enquiried</returns>
        public double getBalance(int acNo)
        {
            Account tempAC = acDB.search(acNo);
            return tempAC.dBalance;
        }

        /// <summary>
        /// Transaction checking operation
        /// </summary>
        /// <param name="acNo">Account number</param>
        public void getTransDetails(int acNo)
        {
           // throw new Exception("The method or operation is not implemented.");
        }

        #endregion
    }
}