Development Assistance Help With Vault. Need some help

Hi everyone, I'm not american, I'm brazilian but I will try to type everything right.

I need some help. I want to create a Economy plugin and I want to set an GiveMoney command, but I have a problem.

Look:

Code:

if(cmd.getName().equalsIgnoreCase("givemoney")){
                if(args.length == 0){
                    p.sendMessage(ChatColor.RED + "Please specify a player");
                }
                if(args[0].length() >= 1){
                    if(args[1].length() == 0){
                        p.sendMessage(ChatColor.RED + "Plase specify a quantity");
                    }
                    if(args[1].length() >= 1){
                        Player p2 = Bukkit.getServer().getPlayer(args[0]);
                        char[] q = args[1].toCharArray();
                       
                        EconomyResponse r = econ.bankDeposit(p2.getName(), q);
                    }
                }
            }

The other things are working good, but in the part of giving a quantity, I have a problem, the args[1] is an string format and I can't transform him into a double format.

Please help me as faster you can plz.

By now, thanks for reading

 

I can help you with this problem as soon as I get home for school.

~Jeremy

 

Ok, thank you

 

Noone will help?