Quick question regarding splits

[hollow hedge]

What happens if you split a string by the first thing in that string. Like if you have R31 and you split it by ("R")

String[] registerInfo=registers[i].split("R");

would 31 be registerInfo[0] or would it be registerInfo[1]

in this case, registers[i] was R31

[hollow bridge]

lets try it

/run

import java.util.Arrays;
public class A {
  public static void main(String[] args) {
  System.out.println(Arrays.toString("R31".split("R")));
  }
}

[gusty marlin]

Here is your java(15.0.2) output @hollow bridge

[, 31]

[hollow bridge]

@hollow hedge

[hollow hedge]

thank you

wait so does that mean, that its the second thing? cuz I see the comma there

even though theres nothing before the comma

[hollow bridge]

yeah first String is "" second String is "31"

[hollow hedge]

awesome, thank you. also pretty awesome to know that there is a bot here that runs java code, thats gonna be a major help for me in the future

[grizzled pasture]

split is just a regex. Regex is Regular Expression. The reason it put the comma there is it split after the literal (R) that you put in the regex.

since it split at that point, one side was empty hence the random comma

[hollow hedge]

👍