Serializable Enumeration : Enumeration Interface « Collections « Java Tutorial

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import java.util.ArrayList;
import java.util.Collection;
import java.util.Enumeration;
import java.util.NoSuchElementException;

 * ???
 * @author ???
 * @version $Revision: 2800 $
public class SerializableEnumeration
   extends ArrayList
   implements Enumeration
   /** The serialVersionUID */
   private static final long serialVersionUID = 8678951571196067510L;
   private int index;

   public SerializableEnumeration () {
      index = 0;

   public SerializableEnumeration (Collection c) {
      index = 0;
   public SerializableEnumeration (int initialCapacity) {
      index = 0;
   public boolean hasMoreElements() {
      return (index < size());
   public Object nextElement() throws NoSuchElementException
      try {
         Object nextObj = get(index);
         return nextObj;
      catch (IndexOutOfBoundsException e) {
         throw new NoSuchElementException();

   private void writeObject( out)
      // the only thing to write is the index field
   private void readObject( in)
      throws, ClassNotFoundException

9.35.Enumeration Interface
9.35.1.The Enumeration Interface
9.35.2.If you prefer a for-loop
9.35.3.Where do we get the enumeration from?
9.35.4.The SequenceInputStream Class
9.35.5.Concatenates the content of two enumerations into one.
9.35.6.Filters enumeration to contain each of the provided elements just once.
9.35.7.Filters some elements out from the input enumeration.
9.35.8.For each element of the input enumeration asks the Processor to provide a replacement
9.35.9.Removes all nulls from the input enumeration.
9.35.10.Returns an enumeration that iterates over provided array.
9.35.11.Support for breadth-first enumerating.
9.35.12.Serializable Enumeration
9.35.13.An enumeration that iterates over an array.
9.35.14.Creating Custom Enumerations