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

//
// Loan account class
//
public class LoanAccount extends MonthlyAccount {

   LoanAccount(String accountname, double loan, double accountinterest, TextArea out) throws NoNameException
	{ super(accountname, accountinterest,out);
	  
	  balance= -loan;
	}

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

   // a call to this method will raise an exception (no extra credit allowed)
   void Withdraw(double amount) throws NoExtraCreditException
	{
	  throw new NoExtraCreditException(new String(Name()));
	}

   void ComputeInterest()
	{ if(balance<0) super.ComputeInterest();

	  // no interest is offered for the overpaid loans
	}

   // 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("Loan account: "+Name()+"\nbalance: "+doubleNo.toString(Balance())+
				"\nmonthly interest: "+doubleNo.toString(interest)+"%\n");
	}
}