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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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An output stream that writes bytes to a file. If the output file exists, it can
be replaced or appen
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This class represents a server-side socket that waits for incoming client
connections. A ServerSocke
- URL (java.net)
A Uniform Resource Locator that identifies the location of an Internet resource
as specified by RFC
- ArrayList (java.util)
ArrayList is an implementation of List, backed by an array. All optional
operations including adding
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SortedSet is a Set which iterates over its elements in a sorted order. The order
is determined eithe
- DataSource (javax.sql)
An interface for the creation of Connection objects which represent a connection
to a database. This
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