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Provides access to system-related information and resources including standard
input and output. Ena
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Formats or parses dates and times.This class provides factories for obtaining
instances configured f
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A legacy iteration interface.New code should use Iterator instead. Iterator
replaces the enumeration
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TimeZone represents a time zone offset, and also figures out daylight savings.
Typically, you get a
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Factory and utility methods for Executor, ExecutorService,
ScheduledExecutorService, ThreadFactory,
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A counting semaphore. Conceptually, a semaphore maintains a set of permits. Each
#acquire blocks if
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