find the nth occurence of a substring in a string in java?

Question

I have a string that is the complete content of an html page and I am trying to find the index of 2nd occurence of . Does anyone have any suggesti

Answer 1

Here is a shot for fun ;)

public static int findNthIndexOf (String str, String needle, int occurence)
            throws IndexOutOfBoundsException {
    int index = -1;
    Pattern p = Pattern.compile(needle, Pattern.MULTILINE);
    Matcher m = p.matcher(str);
    while(m.find()) {
        if (--occurence == 0) {
            index = m.start();
            break;
        }
    }
    if (index < 0) throw new IndexOutOfBoundsException();
    return index;
}