My code doesn't work?

Okay, so i'm very new at plugin development, and as practice i've decided to make a basic plugin that uses exp as health instead of the default hearts. I only wrote code that you receive exp when joining and respawning and die when your exp reaches zero, however it doesn't work when i test it on my server.
Here is my code:

package me.zombehkwer.fantasyonlinehealth;

import org.bukkit.entity.Player;
import org.bukkit.event.EventHandler;
import org.bukkit.event.player.PlayerJoinEvent;
import org.bukkit.event.player.PlayerRespawnEvent;
import org.bukkit.plugin.java.JavaPlugin;

public final class FantasyOnlineHealth extends JavaPlugin{
@Override
public void onDisable() {
getLogger().info("onDisable has been invoked.");

}

@Override
public void onEnable() {
getLogger().info("onEnable has been invoked.");
}
@SuppressWarnings("deprecation")
@EventHandler
public void onPlayerJoinEvent(PlayerJoinEvent event) {
Player player = event.getPlayer();
float exp = player.getExp();
player.giveExp(500);
if (exp == 0); {
player.setHealth(0);
}
}
public void onPlayerRespawnEvent(PlayerRespawnEvent event) {
Player player = event.getPlayer();
player.giveExp(500);
}
}

Eclipse says that there are no errors, could you please tell me why this code doesn't work, or if i need to put something in my plugin.yml.

 

Zombeh_Kwer What are the errors? It may also be useful to see your plugin.yml

 

@Zombeh_Kwer
You did not register your Listeners, and you didn't implement Listener.

 

Zombeh_Kwer
Two notes:

1. Final class? why
2. Not needed SuppressWarnings("deprecation")?

Other than these, it is mainly due to what Dealyise noticed

 

Because you should under no circumstances extend your main class (or extend JavaPlugin more than once) and I would assume OP is following the plugin tutorial.

 

Garris0n isn't that his main class .-.

 

Yes, exactly. Which should not be extended. Hence the final keyword...

 

1. You didn't register the Listener, code below.
2. You didn't implement the Listener(In this case, located in your Main class, though, I highly recommend using multiple classes for stuff like this).
3. No need for the class to be final...
4. Example code to help you out in the future:

Code:java

public class <YourClass> extends JavaPlugin implements Listener {
                                        // import these
@Override
public void onEnable()
{
getPluginManager().registerEvents(this, this);
//register the Listener!
}
 
@EventHandler
public void onPlayerJoin(PlayerJoinEvent event)
{
Player p = event.getPlayer();
// Do desired code here, too lazy to do it myself :P
 
// May contain mistakes, written by hand.
}