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Return the original filename in the client's filesystem.This may contain path
information depending
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This class generates cryptographically secure pseudo-random numbers. It is best
to invoke SecureRand
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Calendar is an abstract base class for converting between a Date object and a
set of integer fields
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A reentrant mutual exclusion Lock with the same basic behavior and semantics as
the implicit monitor
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Patterns are compiled regular expressions. In many cases, convenience methods
such as String#matches
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The org.slf4j.Logger interface is the main user entry point of SLF4J API. It is
expected that loggin
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The GridBagLayout class is a flexible layout manager that aligns components
vertically and horizonta
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