Solved Countdowns

Hi, i'm trying to make a countdown, with messages like:

"60 seconds before the game starts !"
"30 seconds before the game starts !"
"10 seconds before the game starts !"
etc.
Sorry for my bad english, i have no idea how to explain that.
There is my code, something is wrong but i don't know what.

My code (open) My code (close)

Code:

public class StartCountdown extends BukkitRunnable {
   int seconds = 60;

   public StartCountdown()
   {
     Main.state.setState(GameStateType.STARTING);
   }

   @Override
   public void run()
   {
     Common.broadcast(ChatColor.YELLOW + "" + seconds + " seconds before the game starts !");
  seconds--;

  if (seconds <= 0)
  {
  Common.broadcast("The game starts!");
  Main.state.setState(GameStateType.PLAYING);
  cancel();
  }

   }
}

I'm on Spigot 1.8. I tried to search on Github some examples for help me but it didn't helped me. My code is based on Bukkit Wiki: Scheduler Programming.

EDIT: I found this code, and it works. Sorry for this topic useless

New code (open) New code (close)

Code:

public class StartCountdown extends BukkitRunnable {

    float seconds, countdown;
  
    public StartCountdown() {
        float seconds = 30;
      
        this.seconds = this.countdown = seconds;
        this.runTaskTimer(JavaPlugin.getPlugin(Main.class), 0, 10);
        Common.broadcast("La partie commence dans 30 secondes !");
    }

    @Override
    public void run() {
        float t = countdown / seconds;
        for (Player p : Bukkit.getOnlinePlayers()) {
            if (p.isDead())
                continue;
            if (countdown % 2 == 0)
            p.setLevel((int) countdown/2);
            if (countdown == 0)
                p.setExp(0);
            else p.setExp(t);
            countdown-=0.5;
            if (countdown < 0) {
                this.cancel();
            }
        }
    }
}

 

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