Those who thought (element instanceof Main); one minute of silence (R.I.P)....

import java.util.*; public class Main{

static Iterator func(ArrayList mylist){ Iterator it=mylist.iterator(); while(it.hasNext()){ Object element = it.next(); if(element instanceof String) if(element.equals("###"))

     //Hints: use instanceof operator

        break;
    }
  return it;

} @SuppressWarnings({ "unchecked" }) public static void main(String []args){ ArrayList mylist = new ArrayList(); Scanner sc = new Scanner(System.in); int n = sc.nextInt(); int m = sc.nextInt(); for(int i = 0;i

  mylist.add("###");
  for(int i=0;i<m;i++){
     mylist.add(sc.next());
  }

  Iterator it=func(mylist);
  while(it.hasNext()){
     Object element = it.next();
     System.out.println((String)element);
  }

} }

if("###".equals(it.next())) break;

Here is Java Iterator solution - https://programmingoneonone.com/hackerrank-java-iterator-problem-solution.html