How would I add a warmup to my commands

So I am making a plugin and I want one of the commands, /fly to have a warmup, how would I do so. If possible I would like it to be another method in a separate class, so my CommandExecutor doesn't get too crowded.

 

You can use schedulers for that.

Code:java

    public boolean onCommand(CommandSender sender, Command cmd, String label, String[] args){
        if(cmd.getName().equalsIgnoreCase("tp")){
            new TeleportTask(this).runTaskLater(this.plugin, 100);
            sender.sendMessage("You will be teleported in 5 seconds");
            return true;
        }
        return false; 
    }

Code:java

public class TeleportTask extends BukkitRunnable {
 
    private final JavaPlugin plugin;
 
    public TeleportTask(JavaPlugin plugin) {
        this.plugin = plugin;
    }
 
    public void run() {
        // Perform some magic
    }
 
}