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NodeList
interface provides the abstraction of an ordered
collection of nodes, without defining or constraining how this collection
is implemented.
The items in the NodeList
are accessible via an integral
index, starting from 0.
index
th item in the collection.
public abstract Node item(int index)
index
th item in the collection. If
index
is greater than or equal to the number of nodes in
the list, this returns null
.
index
th position in the
NodeList
, or null
if that is not a valid
index.
public abstract int getLength()
length-1
inclusive.
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