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An "abstract" representation of a file system entity identified by a pathname.
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Wraps either an existing OutputStream or an existing Writerand provides
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HashMap is an implementation of Map. All optional operations are supported.All
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A collection designed for holding elements prior to processing. Besides basic
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Factory that creates instances of DateTimeFormatter from patterns and styles.
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The LoggerFactory is a utility class producing Loggers for various logging APIs,
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