Class file for sannounce

package io.github.diamob;

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

public class sAnnounce extends JavaPlugin {
    public PluginDescriptionFile pdfFile = getDescription();
    @Override
    public void onEnable() {
        Bukkit.getConsoleSender().sendMessage(ChatColor.YELLOW + "[" + pdfFile.getName() + "] Version " + pdfFile.getVersion() + " by" + ChatColor.BLUE + "DIAMOB" + ChatColor.YELLOW + " is " + ChatColor.GREEN + "enabled.");
    }

    @Override
    public void onDisable() {
        Bukkit.getConsoleSender().sendMessage(ChatColor.YELLOW + "[" + pdfFile.getName() + "] Version " + pdfFile.getVersion() + " by" + ChatColor.BLUE + "DIAMOB" + ChatColor.YELLOW +  " is " + ChatColor.RED + "disabled.");
    }

    public boolean onCommand(CommandSender sender, Command cmd, String[] args) {
        Player player = (Player) sender;
        if(cmd.getName().equalsIgnoreCase("a")){
    if(!(sender instanceof Player))
    {

        if(!(sender instanceof org.bukkit.command.ConsoleCommandSender))
        {
            sender.sendMessage(ChatColor.RED + "Error: You must be a player to use this!");
            return false;
        }else
        {
            if(args.length > 1)
            {
                if(player.hasPermission("sannounce.*")) {
                    String text = "";
                    for (int i = 0; i < args.length; i++) {
                           text += args[i] + " ";
                            }
                     Bukkit.broadcastMessage(ChatColor.GOLD + "[Announcement] " + ChatColor.BLUE + text);
                     return true;



    }
}
    }
        }

    }
        return false;
}
}