HowToIPBanProperly.java by Robot

public boolean onCommand(allthatgoodstuff) {
    if(cmd.getName().equalsIgnoreCase("ipban") && args.length == 1 && sender.hasPermission("Plugin.ipban") || sender.isOp()) { //Player types /ipban (args) && has permission to ip or is op
        Player mod = (Player)sender;
        Player hacker = Bukkit.getPlayer(args[0]);
        hacker.setBanned(true); //Bans hacker
        hacker.kickPlayer(message); //Initizates ban
        mod.sendMessage(message); //Tell mod he banned hacker
        Bukkit.getServer().broadcastMessage(message); //tell server hacker was banned
        Bukkit.banIP(hacker.getAddress().getAddress().getHostAddress()); //Gets and bans ip
        Bukkit.getOfflinePlayer(hacker.getName()).setBanned(true); //OPTIONAL : Guarantees the ban

    }
    else {
        sender.sendMessage(message);

    }
    return true;

}
return false;

}