How to get system Hostname in java

Hi,
I am a java developer trying to get the hostname of the system from java class. Meaning want the value when i run the $hostname command in linux and my server is Linux server.
I am searching in the System Properties for the hostname but i could not get it
I am running IBM Websphere 5.2 and JDK 1.4.2 in my linux server.
Thanks for input
-AP

Try
package testing;
import java.net.*;
public class Test
  public static void main(String[] args) throws UnknownHostException
    System.out.println(InetAddress.getLocalHost().getHostName());
}

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