Hackerrank
Hackerrank Java Substring Comparisons Solution
Solution in java8 Approach 1. public static String getSmallestAndLargest(String s, int k) { String smallest = s.substring(0, k); String largest = s.substring(0, k); for(int i = 0; i <= s.length() - k; i++){ String sTemp = s.substring(i, i + k); if(sTemp.compareTo(smallest) < 0) { smallest