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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 concrete subclass of NumberFormat that formats decimal numbers. It has a
variety of features desig
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Vector is an implementation of List, backed by an array and synchronized. All
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A counting semaphore. Conceptually, a semaphore maintains a set of permits. Each
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This is the central class in the log4j package. Most logging operations, except
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