Need help coding!

Hi,

I don't know if this is the right place to post but I need help coding a plugin. I know this is the mod section but there is no plugin section. My code is below because you are not allowed to post .jars or .exe
package io.github.YourMCGeek;

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.permissions.Permissible;
import org.bukkit.plugin.java.JavaPlugin;

public final class Powerballers extends JavaPlugin {

@Override
public void onEnable(){
Bukkit.getServer().getLogger().info((ChatColor.GREEN + "Staff helper has been Enabled and is ready to help! :D"));
getLogger().info("onEnable has been invoked!");
for (Player player : this.getServer().getOnlinePlayers()) {
Object playerList;
((Object) playerList).put(player, playerData(player));
}
}


private Object playerData(Player player) {
// TODO Auto-generated method stub
return null;
}

public boolean onCommand(CommandSender sender, Command cmd, String label, String[] args){
if(cmd.getName().equalsIgnoreCase("anyone")){sender.sendMessage(ChatColor.WHITE + "Does anyone need any help? If so just ask!");
return true;
} //If this has happened the function will return true.
// If this hasn't happened the a value of false will be returned.
return false;


if(player.hasPermission("some.pointless.permission")) {
//Do something
}else{
//Do something else
}



}






@Override
public void onDisable() {
Bukkit.getServer().getLogger().info((ChatColor.RED + "Staff helper has now been Disabled and will not be able to preform any commands D: !"));
getLogger().info("onDisable has been invoked!");
}











}
If you can help me I will add you to the plugin. If you have a server I can use to test please tell me