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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
- SocketTimeoutException (java.net)
This exception is thrown when a timeout expired on a socket read or accept
operation.
- DecimalFormat (java.text)
A concrete subclass of NumberFormat that formats decimal numbers. It has a
variety of features desig
- Calendar (java.util)
Calendar is an abstract base class for converting between a Date object and a
set of integer fields
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An ExecutorService that executes each submitted task using one of possibly
several pooled threads, n
- Logger (org.apache.log4j)
This is the central class in the log4j package. Most logging operations, except
configuration, are d
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