import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;
public class Test {
public static void main(String[] args) {
List list = new ArrayList<>();
list.add(5);
list.add(6);
list.add(7);
list.add(8);
Iterator i = list.iterator();
while(i.hasNext()) {
System.out.println(i.next());
}
}
}
/*
run:
5
6
7
8
*/