Chock Codes Minecraft | Pt 1b. | Player Variables & Updated

Main.java:

package me.ChockiYT.hello;

import org.bukkit.plugin.java.JavaPlugin;

public class Main extends JavaPlugin {

    @Override
    public void onEnable() {
        getCommand("hello").setExecutor(new CommandHi());
    }

}

CommandHi.java:

package me.ChockiYT.hello;

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

import net.md_5.bungee.api.ChatColor;

public class CommandHi implements CommandExecutor {

    @Override
    public boolean onCommand(CommandSender sender, Command cmd, String label, String[] args) {
        if(sender instanceof Player) {
            Player player = (Player) sender;
            player.sendMessage(ChatColor.AQUA + "Hello There " + ChatColor.WHITE + player.getDisplayName());
            player.sendMessage(ChatColor.BLUE + "Player Level's XP " + player.getExp());
        }
        return true;
    }

}

plugin.yml:

name: Hello
main: me.ChockiYT.hello.Main
description: sends message back to player
version: 1.0
author: ChockiYT
commands:
    hello: