BukkitRunnables help

i have this

Code:

    public boolean spawnZombies(String arena, boolean spawn){
        BukkitTask task = new Zombies(arena, plugin).runTaskLater(plugin, 40);
        task.
        return true;
    }

and this i got from the bukkit wiki

Code:

package me.icyrelic.com.Manager.Arena;
 
import org.bukkit.plugin.java.JavaPlugin;
import org.bukkit.scheduler.BukkitRunnable;
 
public class Zombies extends BukkitRunnable{
 
        private String arena = "";
        private final JavaPlugin plugin;
       
        public Zombies(String arena, JavaPlugin plugin) {
            this.arena = arena;
            this.plugin = plugin;
        }
   
        public void run() {
            // What you want to schedule goes here
            this.plugin.getServer().broadcastMessage("Welcome to Bukkit! Remember to read the documentation!");
        }
   
}

is there a way instead of to run it later or run now to make it repeat? until i cancel it with task.cancel();

found this in the docs what is period if it runs until canceled

BukkitTask runTaskTimer(Plugin plugin, long delay, long period)
Schedules this to repeatedly run until cancelled, starting after the specified number of server ticks.

got it working

EDIT by Moderator: merged posts, please use the edit button instead of double posting.