package me.dutyrainlp.main;

import org.bukkit.GameMode;
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{

	@Override
	public void onEnable(){
		System.out.println("[E²-Commands] Plugin wurde erfolgreich geladen!");

	}
	@Override
	public void onDisable(){
		System.out.println("[E²-Commands] Plugin wurde erfolgreich beendet!");

	}


	public boolean OnCommand(CommandSender sender, Command cmd, String cmdlabel, String[] args) {
	Player p = (Player) sender;


		if(sender instanceof Player){

				if(cmd.getName().equalsIgnoreCase("gmc")){
					if(p.hasPermission("ez.gm")){
					p.setGameMode(GameMode.CREATIVE);
					p.sendMessage("§7[§bGM§7] Dein Spielmodus wurde in §bKreativ $7gesetzt!");
					}else{
						p.sendMessage("§7[§bGM§7] §cDu hat nicht genügend Rechte um dies zu tun!");
					}
				}
		}


		return false;

	}


}















////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////


und bei der Plugin.yml:



name: EzCommands
version: 1.0
author: DutyRainLP
main: me.dutyrainlp.main.main

commands:
     gmc:
          description: Setzt dich in den Kreative-Modus!
          usage: </gmc>