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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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This exception is thrown when a program attempts to create an URL from an
incorrect specification.
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Uses a one-way hash function to turn an arbitrary number of bytes into a
fixed-length byte sequence.
- Collection (java.util)
Collection is the root of the collection hierarchy. It defines operations on
data collections and t
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HashSet is an implementation of a Set. All optional operations (adding and
removing) are supported.
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A parser that parses a text string of primitive types and strings with the help
of regular expressio
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Patterns are compiled regular expressions. In many cases, convenience methods
such as String#matches
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