String thisLine;
String thisIP;
String theRest;
int index;
InetAddress thisAddress;
byte[] address;
try {
FileInputStream fin = new FileInputStream(args[0]);
DataInputStream myInput = new DataInputStream(fin);
while ((thisLine = myInput.readLine()) != null) {
index = thisLine.indexOf(" ", 0);
thisIP = thisLine.substring(0, index);
theRest = thisLine.substring(index, thisLine.length());
try {
thisAddress = java.net.InetAddress.getByName(thisIP);
address = thisAddress.getAddress();
System.out.println(InetAddressFactory.newInetAddress(address).getHostName() + theRest);
}
catch (UnknownHostException e) {
System.out.println(thisLine);
}
} // while loop ends here
}
catch (IOException e) {
System.out.println("Exception: " + e);
}
