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A connection to a URL for reading or writing. For HTTP connections, see
HttpURLConnection for docume
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A parser that parses a text string of primitive types and strings with the help
of regular expressio
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TreeSet is an implementation of SortedSet. All optional operations (adding and
removing) are support
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The Manifest class is used to obtain attribute information for a JarFile and its
entries.
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Patterns are compiled regular expressions. In many cases, convenience methods
such as String#matches
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