Development Assistance Args problem

Best poeple of the forum,

I have a problem short said if i type: /jqp premium its give an error but i want it to send a message that you have to specify a option(NOTE: This is the only problem i have i just want is args[1] is nothing that is displays a message eccept than an error)

Code (open) Code (close)

Code:

    public boolean onCommand(CommandSender sender, Command cmd, String commandLabel, String[] args){
        String NoPermission = "messages.nopermission";
        String QuitMessage = "messages.quitmessage";
        String JoinMessage = "messages.joinmessage";
        String JoinMessagestatus = "options.joinmessage";
        String QuitMessagestatus = "options.quitmessage";
        String NoPermissionStatus = "options.nopermissionmessage";
        String Premium = "options.premium";
        Player p = (Player)sender;
       
        if(cmd.getName().equalsIgnoreCase("joinquitpro")){
            if(!p.hasPermission("joinquitpro.admin")){
                p.sendMessage(NoPermission);
                return true;
               
            } else {
                if(args.length == 0){
                    p.sendMessage(ChatColor.translateAlternateColorCodes('&', "&6+&7================================================&6+"));
                    p.sendMessage(ChatColor.translateAlternateColorCodes('&', "                  &6*Made by YourPalJake*               "));
                    p.sendMessage(ChatColor.translateAlternateColorCodes('&', "&6/jqp nopermissionmessage &7[set <message> | on/off]   "));
                    p.sendMessage(ChatColor.translateAlternateColorCodes('&', "&6/jqp joinmessage &7[set <message> | on/off]           "));
                    p.sendMessage(ChatColor.translateAlternateColorCodes('&', "&6/jqp quitmessage &7[set <message> | on/off]           "));
                    p.sendMessage(ChatColor.translateAlternateColorCodes('&', "&6/jqp premium &7[on/off]                               "));
                    p.sendMessage(ChatColor.translateAlternateColorCodes('&', "&6/jqp reload &7Reloads the configuration file!         "));
                    p.sendMessage(ChatColor.translateAlternateColorCodes('&', "&6+&7================================================&6+"));
                    return true;
                }

                   
                else if(args[0].equalsIgnoreCase("premium")){
                    if(args[1].isEmpty()){
                        p.sendMessage(ChatColor.translateAlternateColorCodes('&', "&4Please specify a option!"));
                        return true;
                       
                    }
                    else if(args[1].equalsIgnoreCase("on")){
                        getConfig().set(Premium, "on");
                        saveConfig();
                        reloadConfig();
                        p.sendMessage(ChatColor.translateAlternateColorCodes('&', "&aYour settings have been applied!"));
                        return true;
                       
                    }
                    else if(args[1].equalsIgnoreCase("off")){
                        getConfig().set(Premium, "off");
                        saveConfig();
                        reloadConfig();
                        p.sendMessage(ChatColor.translateAlternateColorCodes('&', "&aYour settings have been applied!"));
                        return true;
                       
                    }
                    else{
                        p.sendMessage(ChatColor.translateAlternateColorCodes('&', "&4Invalid option!"));
                        return true;
                    }
                   
                }
                else if(args[0].equalsIgnoreCase("reload")){
                    reloadConfig();
                    p.sendMessage(ChatColor.translateAlternateColorCodes('&', "&aConfig reloaded!"));
                    return true;
               
                }
                   
               
                   

            }
        }
        return true;
    }

}

Error (open) Error (close)

[21:09:17 ERROR]: null
org.bukkit.command.CommandException: Unhandled exception executing command 'jqp' in plugin JoinQuitPro v0.1
at org.bukkit.command.PluginCommand.execute(PluginCommand.java:46) ~[server.jar:git-Bukkit-e04a179]
at org.bukkit.command.SimpleCommandMap.dispatch(SimpleCommandMap.java:140) ~[server.jar:git-Bukkit-e04a179]
at org.bukkit.craftbukkit.v1_11_R1.CraftServer.dispatchCommand(CraftServer.java:629) ~[server.jar:git-Bukkit-e04a179]
at net.minecraft.server.v1_11_R1.PlayerConnection.handleCommand(PlayerConnection.java:1294) [server.jar:git-Bukkit-e04a179]
at net.minecraft.server.v1_11_R1.PlayerConnection.a(PlayerConnection.java:1154) [server.jar:git-Bukkit-e04a179]
at net.minecraft.server.v1_11_R1.PacketPlayInChat.a(SourceFile:37) [server.jar:git-Bukkit-e04a179]
at net.minecraft.server.v1_11_R1.PacketPlayInChat.a(SourceFile:9) [server.jar:git-Bukkit-e04a179]
at net.minecraft.server.v1_11_R1.PlayerConnectionUtils$1.run(SourceFile:13) [server.jar:git-Bukkit-e04a179]
at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source) [?:1.8.0_121]
at java.util.concurrent.FutureTask.run(Unknown Source) [?:1.8.0_121]
at net.minecraft.server.v1_11_R1.SystemUtils.a(SourceFile:46) [server.jar:git-Bukkit-e04a179]
at net.minecraft.server.v1_11_R1.MinecraftServer.D(MinecraftServer.java:695) [server.jar:git-Bukkit-e04a179]
at net.minecraft.server.v1_11_R1.DedicatedServer.D(DedicatedServer.java:360) [server.jar:git-Bukkit-e04a179]
at net.minecraft.server.v1_11_R1.MinecraftServer.C(MinecraftServer.java:650) [server.jar:git-Bukkit-e04a179]
at net.minecraft.server.v1_11_R1.MinecraftServer.run(MinecraftServer.java:554) [server.jar:git-Bukkit-e04a179]
at java.lang.Thread.run(Unknown Source) [?:1.8.0_121]
Caused by: java.lang.ArrayIndexOutOfBoundsException: 1
at me.nl.YourPalJake.JoinQuitPro.JoinQuitProMain.onCommand(JoinQuitProMain.java:78) ~[?:?]
at org.bukkit.command.PluginCommand.execute(PluginCommand.java:44) ~[server.jar:git-Bukkit-e04a179]
... 15 more

And again i just want the troubleshooting of the error the rest i can deal with that only do i not know how to deal with this kind of problem.


Greetings YourPalJake

 

IDK why you're creating this type of plugin when Essentials does the same exact thing.

 

Because i dont use essentials and i am going way more advanced with this than essentials etc.

 

@jakemaster2003
What is line 78?

 

Sorry at the moment i dont have my laptop with me but if you can specify what is Says then i can answer
@yPedyx

 

Instead of checking if args[1] is empty, you have to check if the second arg exists before using it.

 

Can you please show me an example i'm new with args

 

@jakemaster2003
It the same thing you did when you were checking if there were no args. All you need to do is change it so it checks if the length is greater than or equal to 2.

 

You mean like: if(args.length == 2){
?

 

@jakemaster2003
Yes, that should work.

 

But one last thing dough my command is like: /jqp premium on
Premium is arg 0 and on is arg 1 is arg 0 then 1 if i use: if(args.length == 1){ and arg 1 then: if(args.length == 2){

?

 

@jakemaster2003
Correct.

 

I'm going to try it Tomorrow thnx for the support