The following function is stripping (removing) all the characters in string stripChars from the end of the string str? The function is incomplete. What code should be there in place of the comment? public static String stripEnd(final String str, final String stripChars) { if (str == null) return str; int end = str.length(); int INDEX_NOT_FOUND = -1; if(end == 0) return str; else if (stripChars.isEmpty()) { return str; } else { // ********************* // What's the code here? // ********************* } return str.substring(0, end); } while (end != 0 && str.indexOf(stripChars.charAt(end - 1)) == INDEX_NOT_FOUND) { end++; } while (end != 0 && str.indexOf(stripChars.charAt(end - 1)) != INDEX_NOT_FOUND) { end--; } while (end != 0 && stripChars.indexOf(str.charAt(end - 1)) != INDEX_NOT_FOUND) { end--; } while (end != 0 && stripChars.indexOf(str.charAt(end - 1)) == INDEX_NOT_FOUND) { end++; }
