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This class provides methods that return pseudo-random values.It is dangerous to
seed Random with the
- TreeSet (java.util)
TreeSet is an implementation of SortedSet. All optional operations (adding and
removing) are support
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Patterns are compiled regular expressions. In many cases, convenience methods
such as String#matches
- Cipher (javax.crypto)
This class provides access to implementations of cryptographic ciphers for
encryption and decryption
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XPath provides access to the XPath evaluation environment and expressions.
Evaluation of XPath Expr
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General IO stream manipulation utilities. This class provides static utility
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