Java 集合 Vector ListIterator

import java.util.Vector;
import java.util.ListIterator;
public class VectorListIteratorDemo {
  public static void main(String[] args) {
     // Create a Vector
     Vector<String> vector = new Vector<String>();

     //Adding elements to the Vector
     vector.add("Item1");
     vector.add("Item2");
     vector.add("Item3");
     vector.add("Item4");
     vector.add("Item5");

     ListIterator litr = vector.listIterator();
     System.out.println("Traversing in Forward Direction:");
     while(litr.hasNext())
     {
       System.out.println(litr.next());
     }

     System.out.println("\nTraversing in Backward Direction:");
     while(litr.hasPrevious())
     {
       System.out.println(litr.previous());
     }
  }
}

Traversing in Forward Direction:
Item1
Item2
Item3
Item4
Item5

Traversing in Backward Direction:
Item5
Item4
Item3
Item2
Item1