import java.rmi.Naming;
    import java.rmi.RemoteException;
    import java.rmi.NotBoundException;
    import java.net.MalformedURLException;

    public class MensageiroClient {

        public static void main( String args[] ) {
            try {
                Mensageiro m = (Mensageiro) Naming.lookup( "rmi://localhost/MensageiroService" );
                System.out.println( m.lerMensagem() );
                m.enviarMensagem( "Hello World!" );
            }
            catch( MalformedURLException e ) {
                System.out.println();
                System.out.println( "MalformedURLException: " + e.toString() );
            }
            catch( RemoteException e ) {
                System.out.println();
                System.out.println( "RemoteException: " + e.toString() );
            }
            catch( NotBoundException e ) {
                System.out.println();
                System.out.println( "NotBoundException: " + e.toString() );
            }
            catch( Exception e ) {
                System.out.println();
                System.out.println( "Exception: " + e.toString() );
            }
        }
    }