Implement a Investment Account as a form of account - CSharp Custom Type

CSharp examples for Custom Type:class

  1. HOME
  2. CSharp
  3. Custom Type
  4. class

Description

Implement a Investment Account as a form of account

Demo Code

using System;//from   w ww.ja v  a 2 s  .c  o  m
public class Account    // The base class.
{
   public static int _nextAccountNumber = 1000;
   public int _accountNumber;
   public decimal _balance;
   public void InitAccount()
   {
      InitAccount(0);
   }
   public void InitAccount(decimal initialBalance)
   {
      _accountNumber = ++_nextAccountNumber;
      _balance = initialBalance;
   }
   public decimal Balance
   {
      get { return _balance;}
   }
   public void Deposit(decimal amount)
   {
      if (amount > 0)
      {
         _balance += amount;
      }
   }
   public decimal Withdraw(decimal withdrawal)
   {
      if (Balance <= withdrawal) // Use Balance property.
      {
         withdrawal = Balance;
      }
      _balance -= withdrawal;
      return withdrawal;
   }
   public string ToAccountString()
   {
      return String.Format("{0} - {1:C}",
      _accountNumber, Balance);
   }
}
public class InvestmentAccount : Account   // The subclass.
{
   public decimal _interestRate;
   public void InitInvestmentAccount(decimal interestRate)
   {
      InitInvestmentAccount(0, interestRate);
   }
   public void InitInvestmentAccount(decimal initialBalance, decimal interestRate)
   {
      InitAccount(initialBalance);  // Note call to base class.
      this._interestRate = interestRate / 100;
   }
   public void AccumulateInterest()
   {
      _balance = Balance + (decimal)(Balance * _interestRate);
   }
   public string ToInvestmentAccountString()
   {
      return String.Format("{0} ({1}%)",
      ToAccountString(), _interestRate * 100);
   }
}
public class Program
{
   public static void Main(string[] args)
   {
      Account ba = new Account();
      ba.InitAccount(100M); // M suffix indicates decimal.
      ba.Deposit(100M);
      Console.WriteLine("Account {0}", ba.ToAccountString());
      InvestmentAccount sa = new InvestmentAccount();
      sa.InitInvestmentAccount(100M, 12.5M);
      sa.AccumulateInterest();
      Console.WriteLine("Account {0}", sa.ToInvestmentAccountString());
   }
}

Result


Related Tutorials