Help! I have a problem with Vault!

Hello! I am creating a plugin where people can buy and sell items without signs. I am running into the problem that I do not understand. Any help is good help!

Here is the code:

Code:

package co.stock;
 
 
import java.util.logging.Logger;
 
import net.milkbowl.vault.chat.Chat;
import net.milkbowl.vault.economy.Economy;
import net.milkbowl.vault.permission.Permission;
 
import org.bukkit.ChatColor;
import org.bukkit.command.*;
import org.bukkit.entity.Player;
import org.bukkit.inventory.ItemStack;
import org.bukkit.inventory.PlayerInventory;
import org.bukkit.plugin.RegisteredServiceProvider;
import org.bukkit.plugin.java.JavaPlugin;
 
 
public class Stock extends JavaPlugin {
   
    public final Logger logger = Logger.getLogger("Minecraft");
   
    public static Permission permission = null;
    public static Economy economy = null;
    public static Chat chat = null;
 
    private boolean setupEconomy()
    {
        RegisteredServiceProvider<Economy> economyProvider = getServer().getServicesManager().getRegistration(net.milkbowl.vault.economy.Economy.class);
        if (economyProvider != null) {
            economy = economyProvider.getProvider();
        }
 
        return (economy != null);
    }
       
    public void onEnable() {
           
        this.logger.info("[StockMarket] Enabling!");
        getConfig().options().copyDefaults(true);
        saveConfig();
       
    }
       
    public void onDisable() {
        this.logger.info("[StockMarket] Disabling!");
    }
   
    public boolean onCommand(CommandSender sender, Command cmd, String commandLabel, String[] args){
        Player player = (Player) sender;
       
        if(commandLabel.equalsIgnoreCase("stock")){
            if (args.length == 0){
               
                player.sendMessage(ChatColor.RED + "Usage: /stock [buy|sell|price]");
               
            }else if(args.length == 2 && args[0].equalsIgnoreCase("price")){
               
                String item = args[1].toLowerCase();
                player.sendMessage(ChatColor.GOLD + "The price of 1 " + item + " is " + getConfig().getString(item));
               
            }else if(args[0].equalsIgnoreCase("price")){
               
                player.sendMessage(ChatColor.RED + "Usage: /stock price [item#]");
               
            }else if(args.length == 3 && args[0].equalsIgnoreCase("buy")){
               
                String item = args[1].toLowerCase();
                int amount = Integer.parseInt( args[2]);
                int id = Integer.parseInt( args[1] );
                PlayerInventory tempInv = player.getInventory();
                ItemStack tempStack = new ItemStack(id, amount);
                int pb = (int) Stock.economy.getBalance(player.getName());
                int total = getConfig().getInt(item);
                if (pb - total  < 0){
                    player.sendMessage(ChatColor.RED + "You do not have enough money!");
                }else if(pb - total > 0){
                    tempInv.addItem(tempStack);
                    Stock.economy.bankWithdraw(player.getName(), amount * total);
                }
               
               
            }else if(args[0].equalsIgnoreCase("buy")){
               
                player.sendMessage(ChatColor.RED + "Usage: /stock buy [item#]");
            }
        }
        return false;
    }
 
}

And here is the error I am getting in the console when I type /stock buy 264 1:
(on a side note: I have the config file with just 264: 100, indicating the item id and the price)

Code:

2012-09-14 22:36:10 [SEVERE] null
org.bukkit.command.CommandException: Unhandled exception executing command 'stock' in plugin Stock v1.0
    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:276)
    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:581)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:474)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:406)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.ArrayIndexOutOfBoundsException: 2
    at co.stock.Stock.onCommand(Stock.java:69)
    at org.bukkit.command.PluginCommand.execute(PluginCommand.java:40)
    ... 15 more

 

Give me line 69 of your Stock class...
Also: http://forums.bukkit.org/threads/ho...ubleshoot-your-own-plugins-by-yourself.32457/

 

Here is line 69:

Code:

int amount = Integer.parseInt( args[2]);

 

args[2] is null. Make a check before:

if(args[2] != null)
{
//do stuff
}

 

ok I fixed line 69. now I'm getting an error on line 73.

Code:

int pb = (int) Stock.economy.getBalance(player.getName());

Not sure how you would get that into an integer but I kind of just guessed.

 

First getBalance returns a double, so always casting to an int is a bad idea, and running costs as ints everywhere is not a good idea either. You'll probably want to use doubles for money to stay compatible with economies, otherwise your stuff wont be accurate. Example: what happens if you have an item that costs .1 and the player has .5 money?

Second, you never setup the economy.