import java.util.ArrayList;
import java.util.Iterator;
public class ArrayListExample {
public static void main(String[] args) {
ArrayList al = new ArrayList();
al.add(new Integer(1));
al.add(new Integer(2));
al.add(new Integer(3));
al.add(new Integer(4));
al.add(new Integer(5));
al.add(new Integer(6));
al.add(new Integer(7));
al.add(new Integer(8));
al.add(new Integer(9));
al.add(new Integer(10));
al.set(5, new Integer(66));
for (Iterator i = al.iterator(); i.hasNext();) {
Integer integer = (Integer) i.next();
System.out.println(integer);
}
}
}