import java.util.*;
import java.awt.*;

//
// Savings account class
//
public class SavingsAccount extends MonthlyAccount {

   static final double transactionFee=1.0f;
   static final int freeTransactNo=3;

   int transactions;

   SavingsAccount(String accountname, double accountinterest, TextArea out) throws NoNameException
	{ super(accountname,accountinterest,out);

	  transactions=0;
	}

   void Deposit(double amount) throws NegativeAmountException
	{ if(amount<0)
		throw new NegativeAmountException(new String(Name()));
          // impose fee
          transactions++;
	  if(transactions>freeTransactNo) balance-=transactionFee;
	  // update balance
	  balance+=amount;
	}
   void Withdraw(double amount) throws MinBalanceException
	{ if(balance-amount<0)
		throw new MinBalanceException(new String(Name()));

          // impose fee
          transactions++;
	  if(transactions>freeTransactNo) balance-=transactionFee;
	  // update balance
	  balance-=amount;
	}

   void ComputeInterest()
	{ //compute the interest (inherited method from MonthlyAccount)
	  super.ComputeInterest(); 
	
	  transactions=0; // resets the # of transactions
	}

   void Update()
      { date=date%30+1; 
        ComputeInterest();
      }

   public void Output() {
		Double doubleNo=new Double(0);

		output.appendText("Savings account: "+Name()+"\nbalance: "+
				doubleNo.toString(Balance())+"\nmonthly interest: "+
				doubleNo.toString(interest)+"%\n");
	}
}