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An "abstract" representation of a file system entity identified by a pathname.
The pathname may be a
- PrintWriter (java.io)
Wraps either an existing OutputStream or an existing Writerand provides
convenience methods for prin
- MessageDigest (java.security)
Uses a one-way hash function to turn an arbitrary number of bytes into a
fixed-length byte sequence.
- DateFormat (java.text)
Formats or parses dates and times.This class provides factories for obtaining
instances configured f
- ArrayList (java.util)
ArrayList is an implementation of List, backed by an array. All optional
operations including adding
- Executor (java.util.concurrent)
An object that executes submitted Runnable tasks. This interface provides a way
of decoupling task s
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