Solved Checking if arg [] is set

Code:

@Override
    public boolean onCommand(CommandSender sender, Command command, String label, String[] args) {
        int length = args.length;
        Player player = (Player) sender;

        if (command.getName().equalsIgnoreCase("paintball")) {
            if (player.getName().equals("YoItsOmer")) {
                if (length == 4) {
                    if (args[0].equalsIgnoreCase("gun")) {
                        if (args[1].equalsIgnoreCase("give")) {
                            int tier = Integer.parseInt(args[2]);
                            if (tier == 1 || tier == 2 || tier == 3) {
                                if(args[3] == null){
                                    Player target = Bukkit.getPlayer(args[3]);
                                    for (Player online : Bukkit.getOnlinePlayers()) {
                                        if (target.getName() == online.getName()) {
                                            target.getInventory().addItem(gun.getItem(tier));
                                            break;
                                        } else {
                                            player.sendMessage(instance.getPrefix() + "Unable to find player §8:§c" + args[3]);
                                        }
                                    }
                                }else{ // This else does not get triggered when args[3] == null, please help :P
                                    player.getInventory().addItem(gun.getItem(tier));
                                }

                            } else {
                                player.sendMessage(instance.getPrefix() + "You must specify a number between 1-3");
                                player.sendMessage("- Tier 1§8: §9Rifle");
                                player.sendMessage("- Tier 2§8: §9Shotgun");
                                player.sendMessage("- Tier 3§8: §9Machine Gun");

                            }


                        } else {

                            commandHelp(player);

                        }
                    }
                } else if (length == 0) {
                    commandHelp(player);
                }



        } else {
            player.sendMessage(instance.getPrefix() + "You are not Omer.");
        }



    }
        return false;
    }

 

@Omer H.
Please explain your issue, what is going wrong? Are there any errors? If so please post the full console log to pastebin.com.

 

@Omer H.
Are you asking if the args[] contains a specific value.?

 

@timtower @X1machinemaker1X @FrostDevStudios - at the line with the code if(args[3] == 0), the else is not being triggered. please help

 

It won't trigger if the length of the array is 4. There HAS to be a string value in the [3] value of the array for the length to be 4.

 

@Omer H.

You need to use args.length to determine if any argument is filled in.

The length behind the arguments is a litteral count from 1-??? but to get the actual latest argument you need to minus it by -1 from the length because arrays are made from 0-maxsize that is how arrays are made.

So basicly it is like:

Code:java

 
if args.length == 0
no arguments
 
if args.length == 1
one argument given in, and to get the latest one: args[0]
 
if args.length == 2
2 arguments given in, and the first argument is args[0] and the second is args[1] and args[2] is null or gives a IndexOutOfBoundsException.
 

That is how you can work with arguments, and to check if arguments are being used.

 

Thanks!