Creating a list of player in the config

Hi. I am making a court plugin and there is a jury part. You can join or leave the jury. There can be up to 20 jury members. How can I make the max number 20 and make the list. Here is what I have so far:

Code:

}else if(commandLabel.equalsIgnoreCase("jury")){
        @SuppressWarnings("unchecked")
        List<String> juryMembers = (List<String>)plugin.getConfig().getList("jury memebers");
        if(args.length == 0){
            player.sendMessage(ChatColor.RED + "Too few arguments!");
        }
        if(args[0] == "join"){
            juryMembers.add(player.getName());
        }else if(args[0] == "leave"){
            juryMembers.remove(player.getName());
        }else{
            player.sendMessage(ChatColor.RED + "/jury <join|leave>");
        }
    }

 

When they use 'join' check how long the juryMembers list is. If it is greater than or equal to 20, reject them. If not, add them to the list.

Are you trying to add it to a config file as well?

 

@TopTobster5 Hi. Sorry for the delayed response. Yes I am trying to add it to a config file as well. I am kind of a noob so would I create a list and add or take them off this list?