String builder

I was trying to get a list from the config but i realy dont know how to split them up and then check if the player is online or not? Anyone that can help me out?

Code:

if (this.Rpgf.getConfig().getConfigurationSection(player.getName()) == null) {
                  player.sendMessage(ChatColor.AQUA + "Je hebt niemand in je vrienden lijst!");
                  return true;
                }
                StringBuilder sb = new StringBuilder();
                for(String Friends : this.Rpgf.getConfig().getConfigurationSection(player.getName() + ".Friends").getKeys(false)){
                    sb.append(Friends + ", ");   
                }
               
                sender.sendMessage(ChatColor.AQUA + "------------=Friend=------------");
                sender.sendMessage(ChatColor.RED + "Rood " + ChatColor.AQUA + "betekend offline," +  ChatColor.GREEN + "groen" + ChatColor.AQUA +  "betekend online");
               
               
                if(!(sb.toString() == null)) {
                    sender.sendMessage(ChatColor.GREEN + sb.toString() + " is online!");
                   
                }

 

To check if player is online use

Code:java

if(Bukkit.getPlayer(NICK) == null){
//Player is offline!
}else{
//Player is online!
}

 

Wruczek But how would i get the "NICK"?

 

keizermark
NICK is the player's name

 

But how would i get it out of the stringbuilder?

 

psuedoe code, wrote in quick reply

Code:

List<String> players_from_config = new ArrayList<String>();
 
players_from_config = getConfig().getStringList("Players");
 
for(String blah : players_from_config){
if(this.getServer().getPlayer(blah) != null){
//do something with the player here
}
}

 

Thanks guys i found the problem