GameImpl is not abstract and does not override abstract method

[Macca07]

hey, i'm doing an RMI project with factory callback, and i'm getting this error. i can't see any typos so don't think thats a problem, just can't figure it out, will post relevant code and leave out a lot of unnecessary code

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

import java.awt.*;
import java.awt.event.*;
import java.io.Serializable;
import javax.swing.*;
import java.util.Random;

public class GameImpl extends UnicastRemoteObject implements Game
{
class NewGame implements Game, Serializable
{
public ItemPlay21 getPlay21()
{
return new playGame21();
}

public class playGame21 implements ItemPlay21, Serializable
{
public transient JPanel panel;

public JComponent getGUI()
{
panel = new JPanel();
panel.setLayout(new GridLayout(2,2));

return panel;
}

class play21Gui implements ActionListener
{
public JFrame mainFrame;
public JTextArea display;
public JButton play, exit;
public JPanel controlPanel, displayPanel, play21Panel;
public ItemPlay21 play21;

public Random randomNumbers = new Random();

NewGame Game = new NewGame();

play21Gui runner = new play21Gui(Game.getPlay21());


public play21Gui(ItemPlay21 new21Game)
{
play21 = new21Game;
runner.createGui();
}

public void createGui()
{
mainFrame = new JFrame("Assignment One");
Container content = mainFrame.getContentPane();
content.setLayout(new BoxLayout(content, BoxLayout.Y_AXIS));

play21Panel = new JPanel();
play21Panel.add(play21.getGUI());
content.add(play21Panel);

displayPanel = new JPanel();
display = new JTextArea(10, 40);
display.setEditable(false);
displayPanel.add(display);
content.add(displayPanel);

controlPanel = new JPanel();
play = new JButton("Play");
exit = new JButton("Exit");
controlPanel.add(play);
controlPanel.add(exit);
content.add(controlPanel);

play.addActionListener(this);
exit.addActionListener(this);

mainFrame.addWindowListener(new WindowCloseManager());
mainFrame.pack();
mainFrame.setVisible(true);
}

public void actionPerformed(ActionEvent evt)
{
Object originator = evt.getSource();
if (originator == play)
{
playGame();
}
else if (originator == exit)
{
exitApplication();
}
}
}



import java.awt.*;
import java.awt.event.*;
import java.io.Serializable;
import javax.swing.*;
import java.util.Random;

public interface Game extends java.rmi.Remote
{
public ItemPlay21 getPlay21() throws java.rmi.RemoteException;
}

interface ItemPlay21
{
public JComponent getGUI();
}


If anyone needs to look at Client or Server code just let me know

[masijade]

Seemingly, either UnicastRemoteObject or Game, declare some methods that the extending/implementing class is suppossed to define, and you haven't done so.

[racerxadam]

where is the code for UnicastRemoteObject and/or Game?

Please post your code in code tags to make it readable.