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Wraps either an existing OutputStream or an existing Writerand provides
convenience methods for prin
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A connection to a URL for reading or writing. For HTTP connections, see
HttpURLConnection for docume
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This class contains various methods for manipulating arrays (such as sorting and
searching). This cl
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Locale represents a language/country/variant combination. Locales are used to
alter the presentatio
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Defines a general exception a servlet can throw when it encounters difficulty.
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This is the central class in the log4j package. Most logging operations, except
configuration, are d
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