import java.io.IOException;
import javax.swing.JOptionPane;

/**
   Questo programma collauda l'accesso casuale.
   E' possibile accedere a conti esistenti e aggiungere gli interessi, 
   oppure creare nuovi conti
*/


public class BankDataTest
{
 
  public static void main(String[] args) throws IOException
   {

     BankData data = new BankData();
     try
      {
        data.open("bank.dat");
        boolean done = false;
        

        while(!done)
          {

            String input = JOptionPane.showInputDialog("Account number or " + data.size() + "for new account");
            if (input == null) done = true;
            else
              {
                int pos = Integer.parseInt(input);
                 if(0 <= pos && pos < data.size()) // aggiunge interessi
                  {
                   SavingsAccount account = data.read(pos);
                   System.out.println("balance =" + account.getBalance() + 
                   ", interest rate =" + account.getInterestRate());
                   account.addInterest();
                   data.write(pos,account); 
                
                  }
                  else 
                   {
                     input = JOptionPane.showInputDialog("Balance");
                     double balance = Double.parseDouble(input); 
 
                     input = JOptionPane.showInputDialog("Interest rate");
                     double interestRate = Double.parseDouble(input); 
       
                     SavingsAccount account = new SavingsAccount(interestRate);
                     account.deposit(balance);
                     data.write(data.size(), account);    

                   } 
             
 
              }   

          }  


      } 
       
     
      
      finally
       {
         data.close();
         System.out.println("file closed"); 
         System.exit(0);
       }




   } 

}