Prentice.Hall.Introduction.to.Java.Programming,.Brief.Version.9th.(2014).[sharethefiles.com]

}
return false;
/** Check if the board is full */
public boolean isFull() {
for (int i = 0; i < 3; i++)
for (int j = 0; j < 3; j++)
if (board[i][j] == '\u0000')
return false;
}
return true;
}
public static void main(String[] args) {
try {
TicTacToeInterface obj = new TicTacToeImpl();
Registry registry = LocateRegistry.getRegistry();
registry.rebind("TicTacToeImpl", obj);
System.out.println("Server " + obj + " registered");
}
catch (Exception ex) {
ex.printStackTrace();
}
}
2. Create CallBackImpl.java (Listing 46.10) to implement the
CallBack interface.
Listing 46.10 CallBackImpl.java
import java.rmi.*;
import java.rmi.server.*;
public class CallBackImpl extends UnicastRemoteObject
implements CallBack {
// The client will be called by the server through callback
private TicTacToeClientRMI thisClient;
/** Constructor */
public CallBackImpl(Object client) throws RemoteException {
thisClient = (TicTacToeClientRMI)client;
}
/** The server notifies the client for taking a turn */
public void takeTurn(boolean turn) throws RemoteException {
thisClient.setMyTurn(turn);
}
/** The server sends a message to be displayed by the client */
public void notify(String message) throws RemoteException {
thisClient.setMessage(message);
}
/** The server notifies a client of the other player's move */
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