Examples of java.util.Enumeration

java.util.Enumeration
An object that implements the Enumeration interface generates a series of elements, one at a time. Successive calls to the nextElement method return successive elements of the series.
For example, to print all elements of a Vector<E> v:
```
 for (Enumeration<E> e = v.elements(); e.hasMoreElements();) System.out.println(e.nextElement());
```
Methods are provided to enumerate through the elements of a vector, the keys of a hashtable, and the values in a hashtable. Enumerations are also used to specify the input streams to a SequenceInputStream.
NOTE: The functionality of this interface is duplicated by the Iterator interface. In addition, Iterator adds an optional remove operation, and has shorter method names. New implementations should consider using Iterator in preference to Enumeration. @see java.util.Iterator @see java.io.SequenceInputStream @see java.util.Enumeration#nextElement() @see java.util.Hashtable @see java.util.Hashtable#elements() @see java.util.Hashtable#keys() @see java.util.Vector @see java.util.Vector#elements() @author Lee Boynton @version 1.24, 11/17/05 @since JDK1.0

    else {
      m_Values = Utils.cast(m_Values.clone());
      m_Values.remove(index);
      if (!isRelationValued()) {
        Hashtable<Object,Integer> hash = new Hashtable<Object,Integer>(m_Hashtable.size());
        Enumeration enu = m_Hashtable.keys();
        while (enu.hasMoreElements()) {
          Object string = enu.nextElement();
          Integer valIndexObject = (Integer)m_Hashtable.get(string);
          int valIndex = valIndexObject.intValue();
          if (valIndex > index) {
            hash.put(string, new Integer(valIndex - 1));
          } else if (valIndex < index) {

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   * 
   * @param value  the new weight
   */
  public void setWeight(double value) {
    Properties  props;
    Enumeration names;
    String  name;
    
    m_Weight = value;


    // generate new metadata object
    props = new Properties();
    names = m_Metadata.propertyNames();
    while (names.hasMoreElements()) {
      name = (String) names.nextElement();
      if (!name.equals("weight"))
  props.setProperty(name, m_Metadata.getProperty(name));
    }
    props.setProperty("weight", "" + m_Weight);
    m_Metadata = new ProtectedProperties(props);

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      // Print the name of "position"
      System.out.println("Name of \"position\": " + position.name());


      // Print the values of "position"
      Enumeration attValues = position.enumerateValues();
      while (attValues.hasMoreElements()) {
  String string = (String)attValues.nextElement();
  System.out.println("Value of \"position\": " + string);
      }


      // Shallow copy attribute "position"
      Attribute copy = (Attribute) position.copy();

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    // Get scheme-specific options
    if (classifier instanceof OptionHandler) {
      optionsText.append("\nOptions specific to "
          + classifier.getClass().getName()
          + ":\n\n");
      Enumeration enu = ((OptionHandler)classifier).listOptions();
      while (enu.hasMoreElements()) {
        Option option = (Option) enu.nextElement();
        optionsText.append(option.synopsis() + '\n');
        optionsText.append(option.description() + "\n");
      }
    }

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       "R", 1, "-R <num>"));
    vec.addElement(new Option(
        "\tUse pairwise coupling (only has an effect for 1-against1)",
        "P", 0, "-P"));


    Enumeration enu = super.listOptions();
    while (enu.hasMoreElements()) {
      vec.addElement(enu.nextElement());
    }
    return vec.elements();
  }

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      iq.setOptions(args);
      try {
  Utils.checkForRemainingOptions(args);
      } catch (Exception e) {
  System.err.println("Options for weka.experiment.InstanceQuery:\n");
  Enumeration en = iq.listOptions();
  while (en.hasMoreElements()) {
    Option o = (Option)en.nextElement();
    System.err.println(o.synopsis()+"\n"+o.description());
  }
  System.exit(1);
      }

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      BufferedInputStream bi = new BufferedInputStream(new FileInputStream(propsFile));
      editorProps.load(bi);
      bi.close();
      bi = null;
      
      Enumeration enm = editorProps.propertyNames();
      while (enm.hasMoreElements()) {
        String name = enm.nextElement().toString();
        String value = editorProps.getProperty(name, "");
        System.err.println("Registering " + name + " " +value);
        GenericObjectEditor.registerEditor(name, value);
      }

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     * 
     * @return  download file count
     */
    public synchronized int getDownloadCount() {
        int count = 0;
        Enumeration e = clients.elements();
        while (e.hasMoreElements()) {
            FTPClientInterface client = (FTPClientInterface)e.nextElement();
            count += client.getDownloadCount();
        }
        return count;
    }

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     * 
     * @return  upload file count
     */
    public synchronized int getUploadCount() {
        int count = 0;
        Enumeration e = clients.elements();
        while (e.hasMoreElements()) {
            FTPClientInterface client = (FTPClientInterface)e.nextElement();
            count += client.getUploadCount();
        }
        return count;
    }

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     * 
     * @return  deleted file count
     */
    public synchronized int getDeleteCount() {
        int count = 0;
        Enumeration e = clients.elements();
        while (e.hasMoreElements()) {
            FTPClientInterface client = (FTPClientInterface)e.nextElement();
            count += client.getDeleteCount();
        }
        return count;
    }

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