Call constructor from super class via base() - CSharp Custom Type

CSharp examples for Custom Type:base

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Description

Call constructor from super class via base()

Demo Code

using System;//from  w  w w . ja v  a 2  s  .c o  m
public class Account
{
   public static int _nextAccountNumber = 1000;
   public int _accountNumber;
   public decimal _balance;
   public Account() : this(0)
   {
   }
    public Account(decimal initialBalance)
    {
       _accountNumber = ++_nextAccountNumber;
       _balance = initialBalance;
    }
    public decimal Balance
    {
       get { return _balance; }
       protected set { _balance = value; }
    }
    public void Deposit(decimal amount)
    {
       if (amount > 0)
       {
          Balance += amount;
       }
    }
    public decimal Withdraw(decimal withdrawal)
    {
       if (Balance <= withdrawal)
       {
          withdrawal = Balance;
       }
       Balance -= withdrawal;
       return withdrawal;
    }
    public string ToAccountString()
    {
       return String.Format("{0} - {1:C}",
       _accountNumber, Balance);
    }
}
public class InvestmentAccount : Account
{
    public decimal _interestRate;
    public InvestmentAccount(decimal interestRate) : this(interestRate, 0) { }
    public InvestmentAccount(decimal interestRate, decimal initial) : base(initial)
    {
       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 DirectDeposit(Account ba, decimal pay)
    {
       ba.Deposit(pay);
    }
    public static void Main(string[] args)
    {
       Account ba = new Account(100);
       DirectDeposit(ba, 100);
       Console.WriteLine("Account {0}", ba.ToAccountString());
       InvestmentAccount sa = new InvestmentAccount(12.5M);
       DirectDeposit(sa, 100);
       sa.AccumulateInterest();
       Console.WriteLine("Account {0}", sa.ToInvestmentAccountString());
    }
}

Result


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