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ArrayList is an implementation of List, backed by an array. All optional
operations including adding
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A Map is a data structure consisting of a set of keys and values in which each
key is mapped to a si
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UUID is an immutable representation of a 128-bit universally unique identifier
(UUID). There are mul
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A task that returns a result and may throw an exception. Implementors define a
single method with no
- Executor (java.util.concurrent)
An object that executes submitted Runnable tasks. This interface provides a way
of decoupling task s
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Provides Base64 encoding and decoding as defined by RFC 2045.This class
implements section 6.8. Base
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