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Return the contained value, if present, otherwise throw an exception to be
created by the provided s
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A specialized Writer that writes to a file in the file system. All write
requests made by calling me
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Collection is the root of the collection hierarchy. It defines operations on
data collections and t
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This class consists exclusively of static methods that operate on or return
collections. It contains
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A Set is a data structure which does not allow duplicate elements.
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XPath provides access to the XPath evaluation environment and expressions.
Evaluation of XPath Expr
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A Window object is a top-level window with no borders and no menubar. The
default layout for a windo
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