Vector

import java.util.Vector;
import java.util.Iterator;

public class Main{
    public static void main(String args[]){
        Vector v = new Vector();
        for(int i=0;i<5;i++) v.addElement(new Integer(i));
        System.out.println(v.size());
        System.out.println(v.isEmpty());

        Iterator it = v.iterator();
        while(it.hasNext()){
            System.out.println(it.next());
        }
        v.clear();
        System.out.println(v.size());
        System.out.println(v.isEmpty());
    }
}