With messages

package me.woobie.givexp;

import org.bukkit.Bukkit;
import org.bukkit.ChatColor;
import org.bukkit.command.Command;
import org.bukkit.command.CommandExecutor;
import org.bukkit.command.CommandSender;
import org.bukkit.entity.Player;

public class CommandManager implements CommandExecutor {

	@Override
	public boolean onCommand(CommandSender sender, Command cmd, String label, String[] args)
	{
		if(!(sender instanceof Player))
		{
			return true;
		} else {
			Player s = (Player) sender;
			if(cmd.getName().equalsIgnoreCase("xp"))
			{
				if(s.hasPermission("xp.give"))
				{
					if(args.length == 0)
					{
						s.sendMessage(ChatColor.GRAY+ "/xp" + ChatColor.RED+ " <give|take> " + ChatColor.GRAY+ "<player> <#>");
						s.sendMessage(ChatColor.GRAY+ "# = Integer (Amount)");
					}

					if(args.length == 1)
					{
						if(args[0].equalsIgnoreCase("give"))
						{
							if(s.hasPermission("xp.give"))
							{
								s.sendMessage(ChatColor.GRAY+ "/xp <give|take|set> " + ChatColor.RED+ "<player> <#>");
								s.sendMessage(ChatColor.GRAY+ "# = Integer (Amount)");
							}
						}
					}

					if(args.length == 2)
					{
						if(args[0].equalsIgnoreCase("give"))
						{
							if(s.hasPermission("xp.give"))
							{
								Player target = Bukkit.getServer().getPlayer(args[1]);
								if(target != null)
								{
									s.sendMessage(ChatColor.GRAY+ "/xp <give|take|set> <player> " + ChatColor.RED+ " <#>");
									s.sendMessage(ChatColor.GRAY+ "# = Integer (Amount)");
								}
							}
						}
					}

					if(args.length == 3)
					{
						if(args[0].equalsIgnoreCase("give"))
						{
							if(s.hasPermission("xp.give"))
							{
								Player target = Bukkit.getServer().getPlayer(args[1]);
								if(target != null)
								{
									int i = Integer.valueOf((args[2]));
									target.setLevel(target.getLevel() +i);
									target.sendMessage(ChatColor.GRAY+ "Your level has been set to " + ChatColor.RED+ "+" + i);
									s.sendMessage(ChatColor.GRAY+ "You set " + ChatColor.RED+ target.getDisplayName() + ChatColor.GRAY+ " level to " + ChatColor.RED+ "+" + i);
								}
							}
						}
					}

					if(args.length == 1)
					{
						if(args[0].equalsIgnoreCase("set"))
						{
							if(s.hasPermission("xp.set"))
							{
								s.sendMessage(ChatColor.GRAY+ "/xp <give|take|set> " + ChatColor.RED+ "<player> <#>");
								s.sendMessage(ChatColor.GRAY+ "# = Integer (Amount)");
							}
						}
					}

					if(args.length == 2)
					{
						if(args[0].equalsIgnoreCase("set"))
						{
							if(s.hasPermission("xp.set"))
							{
								Player target = Bukkit.getServer().getPlayer(args[1]);
								if(target != null)
								{
									s.sendMessage(ChatColor.GRAY+ "/xp <give|take|set> <player> " + ChatColor.RED+ " <#>");
									s.sendMessage(ChatColor.GRAY+ "# = Integer (Amount)");
								}
							}
						}
					}

					if(args.length == 3)
					{
						if(args[0].equalsIgnoreCase("set"))
						{
							if(s.hasPermission("xp.set"))
							{
								Player target = Bukkit.getServer().getPlayer(args[1]);
								if(target != null)
								{
									int i = Integer.valueOf((args[2]));
									target.setLevel(i);
									target.sendMessage(ChatColor.GRAY+ "Your level has been set to " + ChatColor.RED+ i);
									s.sendMessage(ChatColor.GRAY+ "You set " + ChatColor.RED+ target.getDisplayName() + ChatColor.GRAY+ " level to " + ChatColor.RED+ i);
								}
							}
						}
					}

					if(args.length == 1)
					{
						if(args[0].equalsIgnoreCase("take"))
						{
							if(s.hasPermission("take"))
							{
								s.sendMessage(ChatColor.GRAY+ "/xp <give|take|set> " + ChatColor.RED+ "<player> <#>");
								s.sendMessage(ChatColor.GRAY+ "# = Integer (Amount)");
							}
						}
					}

					if(args.length == 2)
					{
						if(args[0].equalsIgnoreCase("take"))
						{
							if(s.hasPermission("xp.take"))
							{
								Player target = Bukkit.getServer().getPlayer(args[1]);
								if(target != null)
								{
									s.sendMessage(ChatColor.GRAY+ "/xp <give|take|set> <player> " + ChatColor.RED+ " <#>");
									s.sendMessage(ChatColor.GRAY+ "# = Integer (Amount)");
								}
							}
						}
					}

					if(args.length == 3)
					{
						if(args[0].equalsIgnoreCase("take"))
						{
							if(s.hasPermission("xp.take"))
							{
								Player target = Bukkit.getServer().getPlayer(args[1]);
								if(target != null)
								{
									int i = Integer.valueOf((args[2]));
									target.setLevel(target.getLevel() -i);
									target.sendMessage(ChatColor.GRAY+ "Your level has been set to " + ChatColor.RED+ "-" + i);
									s.sendMessage(ChatColor.GRAY+ "You set " + ChatColor.RED+ target.getDisplayName() + ChatColor.GRAY+ " level to " + ChatColor.RED+ "-" + i);
								}
							}
						}
					}
				}
			}
		}
		return false;
	}
}