public interface NodeList
NodeList interface provides the abstraction of an ordered 
 collection of nodes, without defining or constraining how this collection 
 is implemented. NodeList objects in the DOM are live.
 The items in the NodeList are accessible via an integral 
 index, starting from 0.
 
See also the Document Object Model (DOM) Level 3 Core Specification.
Node item(int index)
indexth item in the collection. If 
 index is greater than or equal to the number of nodes in 
 the list, this returns null.index - Index into the collection.indexth position in the 
   NodeList, or null if that is not a valid 
   index.int getLength()
length-1 inclusive.Copyright © 1999-2022 The Apache Software Foundation. All Rights Reserved.