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// Name: Convert IP into hostname
// Description:How do I convert a numeric IP address like 199.1.32.90 into a hostname like star.blackstar.com?
Unfortunately due to an unintended side effect (i.e. a bug) in Java's caching of IP addresses and hostnames, Java 1.0 can't convert numeric IP addresses into hostnames. However this is straightforward in Java 1.1. For example,
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String hostname = InetAddress.getByName("199.1.32.90").getHostName()