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

import Exceptions;
//
// Checking account class - the only type of account with daily payment
//			   of interest -> does NOT inherit MonthlyAccount
//
public class CheckingAccount extends Account {

   // minimal balance required for a checking account
   static final double minBalance=1000.0f;

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

	  balance=1000.0f;
	}

   void Deposit(double amount) throws NegativeAmountException
	{ if(amount<0) 
		throw new NegativeAmountException(Name());
          // update the balance
	  balance+=amount;
	}

   void Withdraw(double amount) throws MinBalanceException
	{ if(balance-amount<minBalance)
		throw new MinBalanceException(new String(Name()));

	  balance-=amount;
	}

   //  The interest is updated every day!
   void ComputeInterest()
        { double interestPay;
	
	  interestPay=balance*interest/100/365;
	  if(balance<0)  // ie. if the account is overdrawn
	    	balance-=interestPay;
	  else
	    	balance+=interestPay;
	}

   // Update method is normally called once every day
   void Update()
      { date=date%30+1;

        ComputeInterest();
      }

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

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