Generate class diagrams based on code.

Draw $($by hand$)$ a UML class diagram to represent as much of the following Java program

session. And then draw the diagram online

class GameClock extends MasterClock $\{$

protected RenjuGame game;

protected int timeLeft;

private Player player;

public int getTimeLeft$()\{...\}$

$\}$

public abstract class MasterClock implements Subject $\{$

private Thread clockThread;

public void start$()\{...\}$

public void run$()\{...\}$

$\}$

final class Player $\{$

public static final int EXPERT $=0$;

public static final int NOVICE $=1$;

private final int rating;

private final Collection activeGames;

public void beginGame$($ RenjuGame game $)\{...\}$

public void endGame$($ RenjuGame game $)\{...\}$

$\}$

interface Subject $\{$

void update$()$;

$\}$