Open a new folder. Copy all the source files of the Hello example to the folder. Modify the sayHello method so that an argument, a name string, is passed in as argument, and the return string is the string “Hello! “ concatenated with the name string.

Question

What will be an ideal response?

Answer 1

```
// A simple RMI interface file - M. Liu
import java.rmi.*;
public interface HelloInterface extends Remote {
/**
* This remote method returns a message.
* @param message a string.
* @return a String message which is “Hello “ concatenated
* with the parameer message.
*/
public String sayHello(String message) throws java.rmi.RemoteException;
} //end interface

import java.rmi.*;
import java.rmi.server.*;

/**
* This class implements the remote interface HelloInterface.
* @author M. L. Liu
*/

public class HelloImpl extends UnicastRemoteObject
implements HelloInterface {

public HelloImpl() throws RemoteException {
super( );
}

public String sayHello(String message) throws RemoteException {
return "Hello" + message;
}
} // end class

```