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Return the contained value, if present, otherwise throw an exception to be
created by the provided s
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A controller for the selection of SelectableChannel objects. Selectable channels
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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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HashMap is an implementation of Map. All optional operations are supported.All
elements are permitte
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TreeSet is an implementation of SortedSet. All optional operations (adding and
removing) are support
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Vector is an implementation of List, backed by an array and synchronized. All
optional operations in
- Cipher (javax.crypto)
This class provides access to implementations of cryptographic ciphers for
encryption and decryption
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