- Running tasks concurrently on multiple threads
- orElseThrow (Optional)
Return the contained value, if present, otherwise throw an exception to be
created by the provided s
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Formats and parses dates in a locale-sensitive manner. Formatting turns a Date
into a String, and pa
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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 specific moment in time, with millisecond precision. Values typically come
from System#currentTime
- Properties (java.util)
A Properties object is a Hashtable where the keys and values must be Strings.
Each property can have
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This class provides access to implementations of cryptographic ciphers for
encryption and decryption
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