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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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Thrown when a file specified by a program cannot be found.
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An output stream that writes bytes to a file. If the output file exists, it can
be replaced or appen
- OutputStream (java.io)
A writable sink for bytes.Most clients will use output streams that write data
to the file system (
- HashMap (java.util)
HashMap is an implementation of Map. All optional operations are supported.All
elements are permitte
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A reentrant mutual exclusion Lock with the same basic behavior and semantics as
the implicit monitor
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