Java split parameter from command

Question

I am trying to split the input from user for example !stats username That command works fine but when user don't write username just !stats my checkers fail and crash Exception in thread "main" java.lang.ArrayIndexOutOfBoundsException: 1

if (!Config.str.split("!stats")[1].isEmpty()) {
}

Save the result of split() into a named array and check it's length before accessing particular elements. — PM 77-1
– PM 77-1, Commented Apr 22, 2016 at 20:07

Michał · Accepted Answer · 2016-04-22 20:13:58Z

2

You need to check size of array, if there is no username then Array will have only one element with index 0. You can also check if string is empty after trim to check if command had only space at the end "!stats "

String[] split = Config.str.split("!stats");
if(split.length > 1 && !split[1].trim().isEmpty()) {
   //do something
}

edited Apr 22, 2016 at 20:13

answered Apr 22, 2016 at 20:11

Michał

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Comments

Priyamal · Accepted Answer · 2016-04-22 20:10:50Z

0

str.split("!stats"); doesnt give errors

your condition is wrong it is giving out exceptions

 boolean condition = Config.str.split("!stats").length<=0 ? false : true;

            if (condition) {
                //your code 
            }

maybe you should try it this way

answered Apr 22, 2016 at 20:10

Priyamal

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