Someone help with saving HashMap!

I have been coding this plugin for a little while but I can't seem to figure out how to save the hashmap in this code:

Code:

public class Possible extends JavaPlugin {
 
    private HashMap<String, Integer> report = new HashMap<String, Integer>();
    private static final Logger log = Logger.getLogger("Minecraft");
 
    @Override
    public void onEnable() {
 
    }
 
    @Override
    public void onDisable() {
     
    }
 
    public boolean onCommand(CommandSender sender, Command cmd, String commandLabel, String[] args) {
        Player player = (Player) sender;
     
        if(commandLabel.equalsIgnoreCase("report"))
        {
            Player target = Bukkit.getPlayer(args[0]);
            if(target instanceof Player) {
                player.sendMessage(ChatColor.RED + "You must report a player!");
            }
         
            if(target == null)
            {
                player.sendMessage(ChatColor.RED + "That player isn't online!");
            }
         
            if(player.isOp() || player.hasPermission("admin.report"))
            {
                player.sendMessage(ChatColor.RED + target.getName() + ChatColor.GREEN + " has been reported!");
                log.info("==========Hacker Reported==========");
                log.info("");
                log.info(target.getName() + " was reported of hacks!");
                log.info("Reported by " + player.getName() + "!");
                log.info("");
                log.info("===================================");
                if(!report.containsKey(target)) {
                    report.put(target.getName(), 1);
                } else {
                    report.put(target.getName(), report.get(target) + 1);             
                }
            }
            else
            {
                player.sendMessage(ChatColor.RED + "You can't do that!");
            }
            return true;
        }
        if(commandLabel.equalsIgnoreCase("check")) {
            Player target = Bukkit.getPlayer(args[0]);
            if(player.isOp() || player.hasPermission("admin.check")) {
                if(!report.containsKey(target)) {
                    player.sendMessage(ChatColor.GREEN + "That player hasn't been reported!");
                } else {
                    player.sendMessage(ChatColor.GREEN + "That player has been reported " + report.get(target) + " times!");
                }
            }
            return true;
        }
        return false;
    }
 
 
}

 

What's the problem? Is there an error? Also, you have to check the length of the arguments before trying to access an index of an array which could not exist. For example, if you want to get args[0], you would need to check if args.length == 1.

 

chasechocolate
I'm trying to save the hashmap when the server closes and then reload it when the server starts again. I don't know how to though.

 

lordbobby104 http://wiki.bukkit.org/Configuration_API_Reference - just save it in the onDisable() and load it in the onEnable().

 

You could save each value in a list in a string, separated by a special character in your config.

So, say you have your key and value and you want to use @ as the special character, make a String "key@value", then save it to a list. When the server loads, iterate through your list, adding each part to your hashmap as it was before shutdown.

lordbobby104

 

turqmelon
Could you give an example code of how to do this?