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Uses a one-way hash function to turn an arbitrary number of bytes into a
fixed-length byte sequence.
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The BitSet class implements abit array [http://en.wikipedia.org/wiki/Bit_array].
Each element is eit
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A legacy iteration interface.New code should use Iterator instead. Iterator
replaces the enumeration
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An iterator over a sequence of objects, such as a collection.If a collection has
been changed since
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A Java virtual machine.
A VirtualMachine represents a Java virtual machine to which this Java vir
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