public interface Client extends java.rmi.Remote {
    public void setID(Integer index) throws java.rmi.RemoteException;     
    public void register(Integer index, Client client) throws java.rmi.RemoteException; 
    public void setAvailable(Boolean availability) throws java.rmi.RemoteException; 
    public int getBalance() throws java.rmi.RemoteException; 
    public String report() throws java.rmi.RemoteException; 
    public int process(Transaction transaction) throws java.rmi.RemoteException; 
}