AutoUpdater class

import java.util.ArrayList;


public class AutoUpdater implements Runnable
{

    private ArrayList<Client> updaterClientList;
    long time;

    public AutoUpdater()
    {
        updaterClientList = new ArrayList<Client>();
        time = 86400000; //24 hours
    }

    public void run()
    {
        try
        {
            autoUpdateAccounts();
            Thread.sleep(time);
        }
        catch (Exception e)
        {
            e.printStackTrace();
        }
    }

    private void autoUpdateAccounts() throws Exception
    {
        updaterClientList = Bank.getInstance().getClients();
        for (Client clnt : updaterClientList)
        {
            float newClientBalance =clnt.getBalance() + (clnt.getBalance() *
                                    clnt.getInterestRate());
            clnt.setClientBalance(newClientBalance);
        }
        Bank.getInstance().setClients(updaterClientList);
    }

}