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How do I convert a numeric IP address like 192.18.97.39 into a hostname like java.sun.com?

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By InetAddress.getByName("192.18.97.39").getHostName() where 192.18.97.39 is the IP address. Consider the following example.

import java.io.*;    

import java.net.*;    

public class InetDemo{    

public static void main(String[] args){    

try{    

InetAddress ip=InetAddress.getByName("195.201.10.8");    

  

System.out.println("Host Name: "+ip.getHostName());    

}catch(Exception e){System.out.println(e);}    

}    

}

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