Java Substring Comparisons Hackerrank Solution For Explanation Watch Video: Sample Input 0 welcometojava 3 Sample Output 0 ava wel Code: import java.util.Scanner; public class Solution { public static String getSmallestAndLargest(String s, int k) { String smallest = "" ; String largest = "" ; smallest = s.substring(0,k); largest = s.substring(0,k); for(int i=0;i<=s.length()-k;i++){ String sub = s.substring(i,i+k); if(smallest.compareTo(sub)>0){ smallest = sub; } if(largest.compareTo(sub)<0){ largest = sub; } } return smallest + "\n" +largest; } public static void main(String[] args) { Scanner scan = new Scanner(System.in); String s = scan.next(); int k = scan.nextInt(); scan.close(); System.out.println(getSmallestAndL