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An immutable arbitrary-precision signed integer.FAST CRYPTOGRAPHY
This implementation is efficient f
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A charset is a named mapping between Unicode characters and byte sequences.
Every Charset can decode
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A Properties object is a Hashtable where the keys and values must be Strings.
Each property can have
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Factory and utility methods for Executor, ExecutorService,
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Patterns are compiled regular expressions. In many cases, convenience methods
such as String#matches
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This is the central class in the log4j package. Most logging operations, except
configuration, are d
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