Tutorial3 - Blockhead's Bukkit Coding

package me;

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

public class Tutorial3 extends JavaPlugin{

    public void onEnable(){
        getServer().getLogger().info("Tutorial3 has started");

    }

    public boolean onCommand(CommandSender sender, Command cmd, String commandLabel, String[] args){

        if (cmd.getName().equalsIgnoreCase("hello")){
            if (!sender.hasPermission("tutorial3.hello")){
                sender.sendMessage("You do not have permission.");
                return true;
            }
            if (args.length == 1){
                Player target = getServer().getPlayer(args[0]);

                if (target == null){
                    sender.sendMessage("Player is not online.");
                    return true;
                }

                target.sendMessage("Hey, " + target.getName() + "! " + sender.getName() + " says hello!");

                sender.sendMessage(target.getName() + " has received your message!");

                return true;

            }else{

                sender.sendMessage("Usage: /hello <player>");
                return true;
            }

        }

        if (cmd.getName().equalsIgnoreCase("tellme")){
            if (!sender.hasPermission("tutorial3.tellme")){
                sender.sendMessage("You do not have permission.");
                return true;
            }

            if (args.length >= 1){

                String message = "";
                for (int i = 0; i < args.length; i++) message += (i > 0 ? " " : "") + args[i];

                sender.sendMessage(message);
                return true;

            } else {

                sender.sendMessage("Usage: /tellme <message...>");
                return true;

            }



        }



        return true;
    }

}