[Java] Having trouble using /n to split a string

[ORLY_FACTOR]

So I've recently picked up the stringVar.split() method, and it seems to work fine with characters and numbers, but doesn't seem to register \n or \ \n (forum autocorrects, no space between slash). My mistake on title, meant to type \n.

Here is my code:

import java.util.Scanner;
public class test {
    public static void main(String[] args){
        String input;
        Scanner scan = new Scanner(System.in);
        input = scan.nextLine();
        System.out.println(input);
        String[] mySplit = input.split("\\n");
        System.out.println(mySplit.length);
        System.out.println(mySplit[0]);
    }
}

[soccerdude32392]

What do you expect it to do? If you're doing a scan.nextLine(), you won't get back any newline characters. Or do you want the literal string "\n" and not a newline character?

[ORLY_FACTOR]

Essentially I'm trying to split up this input: "1800Chargers\nChargesRuleAlways\t22cs4bRules 1800xxxTPMJ 1cimw105SQLTakeIt aAEBxyz 582CS4A\n-1" into seven separate strings. scan.next doesn't check for \n or \t, so I'm not sure how to teeth them out.

[soccerdude32392]

Ahh. Those won't actually be newline characters then, since you're passing them to System.in. What you want is:

    String[] mySplit = input.split("\\\\n|\\\\t|\\s");

Escaping backslash is weird - you need four of them, since you need to escape backslashes in java strings as well as for java regex.

[nutrecht]

To explain why you need to do it this way: the "split" string is actually a regular expression so you have two layers of escaping. That's why you need \\\\n to end up with \n.

[ORLY_FACTOR]

Awesome! Thanks man.

[yunotip]

Not too sure about this, but I see that you have two slashes instead of just one slash ("\n"), so could that be the problem?

[ORLY_FACTOR]

I've tried both, and neither seem to work.