• Below program explains how to get System details like, system name/hostname, IP Address and Login User Name.

package in.malliktalksjava;

import java.net.InetAddress;
import java.net.UnknownHostException;

/**
* @author malliktalksjava.in
*
* This class gives you the system Host details, IP address and
* login user name
*/
public class GetSystemInfo {

public static void main(String[] args) {
try {
InetAddress inetAddress = InetAddress.getLocalHost();

// Print Host Name
System.out.println("System Host Name : "
+ inetAddress.getHostName());

// Print complete hostname with domain
System.out.println("System Canonical Host Name : "
+ inetAddress.getCanonicalHostName());

// print IP address
System.out.println("System IP Address : "
+ inetAddress.getHostAddress());

// Print Login user name
System.out.println("Login User : "
+ System.getProperty("user.login"));

} catch (UnknownHostException e) {
e.printStackTrace();
}
}
}