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getAddress() returns the IP address.
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in byte array format (network byte
order), with
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highest byte at bytearray[0].
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getAllByName(hostname)
returns an
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array of
InetAddress instances for the given
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host name.
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One host name may
be mapped to multiple
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machines.
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One host name
can map to multiple addresses in
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the same machine
(virtual addresses).
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