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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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Allows reading from and writing to a file in a random-access manner. This is
different from the uni-
- ConnectException (java.net)
A ConnectException is thrown if a connection cannot be established to a remote
host on a specific po
- Calendar (java.util)
Calendar is an abstract base class for converting between a Date object and a
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Collection is the root of the collection hierarchy. It defines operations on
data collections and t
- HashMap (java.util)
HashMap is an implementation of Map. All optional operations are supported.All
elements are permitte
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