RegExp is new to me!
I have a string which contains few commas that the number/place of the commas are not predictable.
I need the substring that begins from the 5th comma from the end, and forward.

example:
full string:
  OU=Praklitim,OU=Sanegoria,OU=JR-Maatz,OU=OUs,DC=justice,DC=gov,DC=il
substring:
  OU=JR-Maatz,OU=OUs,DC=justice,DC=gov,DC=il

Thank you,
Maya.

Try the code below. Hope that's what you need

----------------------------------------------


    String str =
        "OU=Praklitim,OU=Sanegoria,OU=JR-Maatz,OU=OUs,DC=justice,DC=gov,DC=il";
    String result = "";
    String[] stringMassive = str.split(",");
    for (int i = stringMassive.length - 5; i < stringMassive.length; i++) {
      result = result.concat(stringMassive[i]);
      if (i != stringMassive.length - 1) result = result.concat(",");

    }
    System.out.println(result);

----------------------------------------------

Best,
Anna

Thank you Anna,
But
I was looking for a regular Expression code. There are a lot of ways to Solve the problem and one of them is yours. Are you formilier with RE?
Maya.

http://www.regular-expressions.info/java.html

Split() method in String class is one of "Quick Regex Methods of The String Class".

And you can get the same string massives via regular expression code:
----------------------------------

Pattern myPattern = Pattern.compile("OU=Praklitim,OU=Sanegoria,OU=JR-Maatz,OU=OUs,DC=justice,DC=gov,DC=il");
String[] stringMassive = (myPattern.pattern()).split(",");

-----------------------------------

Oh, guess I understand you finally. Is it what you need?

---------------------------------------------------


   String input = "OU=Praklitim,OU=Sanegoria,OU=JR-Maatz,OU=OUs,DC=justice,DC=gov,DC=il";
     int i = 0; int j = 0;
     Pattern p = Pattern.compile(",");
     Matcher m = p.matcher(input);
     while (m.find()) {
     i++;

    }
    while (m.find()) {
      if (j == i - 5) System.out.println(input.subSequence(m.start() + 1, input.length()));
      j++;
    }

----------------------------------------------

Best,
Anna

P.S. But IMHO String methods are more simple to use and to understand ;)