spawn 2 players in 2 positions

Hey everyone, How can i spawn 2 players in 2 positions, Like the 1vs1 so how i can do it? I didn't tried anything because i didn't know how to do it, I didn't find anything on google, So if anyone can help please help me.

 

Are you trying to do this with commands or Plugins?

 

Maybe your are not understanding me, I want if he clicked the sign he will be teleported to the lobby < he will be waiting the other player to join > , If there is 2 players the game will be start, how can i get the 2 players?

I'm not understanding you, what you mean?

 

So how i can get the first player who clicked the sign and the next player who clicked the sign?

 

In a java ArrayList, you can get the elements by it's index value:

Code:

public List<UUID> queue = new ArrayList<>();

public void joinQueue (Player p) {
    UUID id = p.getUniqueId();
    if(!queue.contains(id)
        queue.add(id);
    if(queue.size()>1) {
        Player p1 = Bukkit.getPlayer(queue.remove(0)),
                    p2 = Bukkit.getPlayer(queue.remove(0));
        // so stuff...
    }
}

public void leaveQueue(Player p) {
    queue.remove(p.getUniqueId());
}

// Remove player when he leaves
@EventHandler
public void onQuit(PlayerQuitEvent e) {
    leaveQueue(e.getPlayer());
}