code/plugin

package com.koscile.tutorial.commands;

import org.bukkit.attribute.Attribute;
import org.bukkit.command.Command;
import org.bukkit.command.CommandExecutor;
import org.bukkit.command.CommandSender;
import org.bukkit.entity.Player;
import org.bukkit.potion.PotionEffect;
import org.bukkit.potion.PotionEffectType;

public class tutorialCommands implements CommandExecutor {
    private Object PotionEffectType;

    @Override
    public boolean onCommand(CommandSender sender, Command cmd, String label, String[] args) {
        if (!(sender instanceof Player)) {
            return true;
        }
        Player player = (Player) sender;

        if (cmd.getName().equalsIgnoreCase("potion")) {
            player.addPotionEffect(new PotionEffect(org.bukkit.potion.PotionEffectType.JUMP, 60, 0));
        }

        if (cmd.getName().equalsIgnoreCase("feed")) {
            player.setFoodLevel(20);
        }
        return true;
    }
}