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org.w3c.dom.html2
public interface: HTMLOptionsCollection [javadoc | source] An HTMLOptionsCollection is a list of nodes representing HTML option element. An individual node may be accessed by either ordinal index or the node's name or id attributes. Collections in the HTML DOM are assumed to be live meaning that they are automatically updated when the underlying document is changed.

See also the Document Object Model (DOM) Level 2 HTML Specification.

Method from org.w3c.dom.html2.HTMLOptionsCollection Summary:
getLength,   item,   namedItem,   setLength
Method from org.w3c.dom.html2.HTMLOptionsCollection Detail:
 public int getLength()
    This attribute specifies the length or size of the list.
 public Node item(int index)
    This method retrieves a node specified by ordinal index. Nodes are 
numbered in tree order (depth-first traversal order).
 public Node namedItem(String name)
    This method retrieves a Node using a name. It first 
searches for a Node with a matching id 
attribute. If it doesn't find one, it then searches for a 
Node with a matching name attribute, but 
only on those elements that are allowed a name attribute. This method 
is case insensitive in HTML documents and case sensitive in XHTML 
documents.
 public  void setLength(int length) throws DOMException
    This attribute specifies the length or size of the list.