Can't check if player is on a team or not using ==null

Alright, my issue is simple. Bascially I want to check if there are either no or any players on two given teams (Hunters and Runnes) != null and == null doesn't seem to work? Because when I do /join instead of taking me to the game it gives me You can't join, a game is in session!!

Join code:

Code:

 if (Runners.isPlayerRunning((Player) sender) || Hunters.isPlayerHunting((Player) sender)){
            p.sendMessage(ChatColor.RED + "You can't join....you are already in a game");
        } else if (Runners.getRunners() == null && Hunters.getHunters() == null){
       
        p.sendMessage(ChatColor.GREEN + "You have joined the game!");
        ArenaManager.getManager().addPlayer(p, num);
       
           
    }  if (Runners.getRunners() != null || Hunters.getHunters() != null){
        p.sendMessage(ChatColor.RED + "You can't join, a game is in session!!");
        return true;
    }
   
      

Hunter class (Runner same thing ,different names):

Code:

package me.creeoer.teams;
 
import java.util.ArrayList;
import java.util.List;
 
import org.bukkit.ChatColor;
import org.bukkit.entity.Player;
 
public class Hunters {
 
   
   
   
private static List<Player> hunters = new ArrayList<Player>();
   
    public void addHunter(Player player){
        if(hunters.contains(player)){
            return;
        }
        hunters.add(player);
        player.setDisplayName(ChatColor.RED + player.getName());
   
       
        }
    public static List<Player> getHunters(){
        return hunters;
    }
    public void removeHunter(Player player){
        if(hunters.contains(player)){
            hunters.remove(player);
        }
    }
       
    public static boolean isPlayerHunting(Player player){
        if (hunters.contains(player)){
            return true;
        } else
            return false;
   
       
    }
   
       
    }
    

 

That's because it's not null, it's just empty. Try testing isEmpty().

e.x. !Runners.getRunners().isEmpty()

 

Thanks, and how would I check if the list has a player in it? Would I do Runners.getRunners().equals(>0)? Which doesn't seem to work, I also thought you used null to check if ANYTHING was in there or not, obviousuly I was wrong, I guess you use it to check if there is an instance of something, correct? Jake6177

 

If the list isn't empty then there is a player in it.