Increase value

I have this

Code:

this.playerVotePOTW.put(pExact.getName(), ?);

Where the question mark is i need to add one each time, i've tried + 1 and Integer.valueOf(1); but neither made it go up by one each time.

 

Code:

this.playerVotePOTW.put(pExact.getName(), this.playerVotePOTW.get(pExact.getName())+1);

 

I get this error on that line when I do that

Code:

org.bukkit.command.CommandException: Unhandled exception executing command 'potw' in plugin PlayerVoter v0.2
at org.bukkit.command.PluginCommand.execute(PluginCommand.java:42)
at org.bukkit.command.SimpleCommandMap.dispatch(SimpleCommandMap.java:168)
at org.bukkit.craftbukkit.CraftServer.dispatchCommand(CraftServer.java:492)
at net.minecraft.server.NetServerHandler.handleCommand(NetServerHandler.java:878)
at net.minecraft.server.NetServerHandler.chat(NetServerHandler.java:825)
at net.minecraft.server.NetServerHandler.a(NetServerHandler.java:807)
at net.minecraft.server.Packet3Chat.handle(Packet3Chat.java:44)
at net.minecraft.server.NetworkManager.b(NetworkManager.java:281)
at net.minecraft.server.NetServerHandler.d(NetServerHandler.java:109)
at net.minecraft.server.ServerConnection.b(SourceFile:35)
at net.minecraft.server.DedicatedServerConnection.b(SourceFile:30)
at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:583)
at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
at me.slater96.PlayerVoter.PlayerVoter.onCommand(PlayerVoter.java:120)
at org.bukkit.command.PluginCommand.execute(PluginCommand.java:40)
... 15 more

 

Does it contain pExact.getName() b4 you do that?

 

Yeah here's my code

Code:

if (args[0].equalsIgnoreCase("Vote")) {
                if (args.length < 2) {
                    p.sendMessage(ChatColor.RED + "Incorrect Command: You must do /potw vote [playername]");
                    return true;
                }
                Player pExact = Bukkit.getPlayerExact(args[1]);
                if (pExact == null) {
                    p.sendMessage(ChatColor.RED + "That player was not recognised! Is he/she online?");
                    return true;
                }
                if (pExact.getName().equals(p.getName())) {
                    p.sendMessage(ChatColor.RED + "You cannot vote for yourself!");
                    return true;
                }
                if (this.hasPlayerVoted.containsKey(p.getName())) {
                    p.sendMessage(ChatColor.RED + "You have already voted, wait until next week!");
                    return true;
                }
                p.sendMessage(ChatColor.AQUA + "You have sucessfully voted for " + args[1] + "!");
                this.playerVotePOTW.put(pExact.getName(), this.playerVotePOTW.get(pExact.getName())+1);
                this.hasPlayerVoted.put(p.getName(), Boolean.valueOf(true));
                return true;
            }

 

afaik, it does not contain it...

 

How do I make it go up by one each time then?

 

Not entirely sure what it is you're trying to do, but if you want to be able to count the total votes why not just use a list with names and use the size() method to get the total votes?

 

check if this.playerVotePOTW.get(pExact.getName()) == null if it is null, add it, if not, increment it

 

Oh right, i was just trying to store the players name and vote count and then another command shows how many votes that player has, I'll try using a list thanks.

I'm still a bit stuck on it, could you give me an example please?

EDIT by Moderator: merged posts, please use the edit button instead of double posting.

 

Code:

if(this.playerVotePOTW.get(pExact.getName()) != null) {
    this.playerVotePOTW.put(pExact.getName(), this.playerVotePOTW.get(pExact.getName())+1);
} else {
    this.playerVotePOTW.put(pExact.getName(), 1);
}