Simple Hello Plugin

package me.JasGames.Hello;

import org.bukkit.command.Command;
import org.bukkit.command.CommandSender;
import org.bukkit.entity.Player;
import org.bukkit.plugin.java.JavaPlugin;

public class Main extends JavaPlugin {

		  public void onEnable()
		  {
		    getLogger().info("This plugin has been enabled");
		  }

		  public void onDisable() {}

public boolean onCommand(CommandSender sender, Command cmd, String label, String[] args)
{
	if (cmd.getName().equalsIgnoreCase("hello")) {
		{
		      Player p = (Player)sender;
	p.sendMessage("§3Hello§b " + p.getName() + "§b!");
	return true;
}
}
	return false;
}
}