35. Java Iterator - Java | OOPs | Hackerrank

Java Iterator class can help you to iterate through every element in a collection. import java.util.*; public class Example{ public static void main(String []args){ ArrayList mylist = new ArrayList(); mylist.add("Hello"); mylist.add("Java"); mylist.add("4"); Iterator it = mylist.iterator(); while(it.hasNext()){ Object element = it.next(); System.out.println((String)element); } } In this problem you need to complete a method func. The method takes an ArrayList as input. In that ArrayList there is one or more integer numbers, then there is a special string "###", after that there are one or more other strings.