Please need help with Inner Classes

Question

Hi! I have the following inner class, but it is not an "explicit" inner class:
import java.util.*;
public class EXTERIOR_NOEXPLICITA {
     private Vector i;
     public void llena_Vector(int a){
          i = new Vector();
          for(int z=0;z<=a;z++)
               i.addElement(""+z);
     public Enumeration test() {
          return new Enumeration(){
               int item = i.size()-1;
               public boolean hasMoreElements(){
                    return(item >= 0);
               public Object nextElement(){
                    if(!hasMoreElements())
                         throw new NoSuchElementException();
                    else
                         return i.elementAt(item--);
My question is, how can I put it in an explicyt inner class?
Plese help me! =)
Raul

Answer 1

I am not entirely sure what you mean by explicit inner class. If you mean converting your anonymous class into a nested class, then it is quite easy:
import java.util.*;
public class EXTERIOR_NOEXPLICITA {
  private Vector i;
  public void llena_Vector(int a) {
    i = new Vector();
    for (int z = 0; z <= a; z++)
      i.addElement("" + z);
  private final class MyEnumeration implements Enumeration {
    int item = i.size() - 1;
    public boolean hasMoreElements() {
      return (item >= 0);
    public Object nextElement() {
      if (!hasMoreElements())
        throw new NoSuchElementException();
      else
        return i.elementAt(item--);
  public Enumeration test() {
    return new MyEnumeration();