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An input stream that reads bytes from a file.
File file = ...finally
if (in != null)
in.clos
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An exception that indicates a failed JDBC operation. It provides the following
information about pro
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This class consists exclusively of static methods that operate on or return
collections. It contains
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A specific moment in time, with millisecond precision. Values typically come
from System#currentTime
- HashMap (java.util)
HashMap is an implementation of Map. All optional operations are supported.All
elements are permitte
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An ExecutorService that executes each submitted task using one of possibly
several pooled threads, n
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