Java Iterator Hackerrank Solution
For Explanation Watch Video:
Code:
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)//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<n;i++){
mylist.add(sc.nextInt());
}
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);
}
}
}
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