works!

package me.doom.fly;

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 Commands implements CommandExecutor {

    @Override
    public boolean onCommand(CommandSender sender, Command cmd, String label, String[] args) {
        if (args.length == 3) {
            if (!(sender instanceof Player)) { return false;}
            if (cmd.getName().equalsIgnoreCase("hoh")) { if (args[0].equalsIgnoreCase("team")) { if (args[1].equalsIgnoreCase("join")) {
                        String name = sender.getName();
                        @SuppressWarnings("deprecation")
                        String uuid = Bukkit.getPlayerExact(name).getUniqueId().toString();
                        String team = Hash.getInstance().joinTeam.get(uuid);

                        if (team.equalsIgnoreCase("none")) {
                            if (!(Main.Game == "Y")) {
                                Hash.getInstance().joinTeam.put(uuid, args[2]);
                                String teamMsg = Main.title + "&eJoined Team &7-> &e" + args[2];
                                String tMsgFix = ChatColor.translateAlternateColorCodes('&', teamMsg);
                                sender.sendMessage(tMsgFix);
                                return true;
                            } else {
                                String EMsg = Main.title + "&eThe game has started already.";
                                String EFix = ChatColor.translateAlternateColorCodes('&', EMsg);
                                sender.sendMessage(EFix);
                                return true;
                            }
                        } else {
                            String EMsg = Main.title + "&eYou are already on a Team.";
                            String EFix = ChatColor.translateAlternateColorCodes('&', EMsg);
                            sender.sendMessage(EFix);
                            return true;
                        }

                    }
                }
            }


        }

        return false;
    }

}