CtWCEA - Online Java Compiler & Debugging Tool

import java.util.*;
import java.util.regex.*;
import java.lang.*;
import java.io.*;

class Ideone
{
	public static void main (String[] args) throws java.lang.Exception
	{
     	final var r = "(?<=\\G.{14})";
        final var p = java.util.regex.Pattern.compile(r);
        final var am = p.matcher("0123456789  "+new String(Character.toChars(129130))+" ABCDEFGHI");
        final var bm = p.matcher("0123456789  "+new String(Character.toChars(    45))+" ABCDEFGHI");
        System.out.println("SPLIT.fa "+am.find(0));
        System.out.println("SPLIT.fb "+bm.find(0));
	}
}