import java.net.NetworkInterface;

import java.net.SocketException;

import java.net.InterfaceAddress;

import java.util.Collections;

import java.util.ArrayList;

public class NetworkInterfaceInfo{

public static void main(String[] args){

try{

ArrayList<NetworkInterface> networkInterfaces =

Collections.list(NetworkInterface.getNetworkInterfaces());

// getNetworkInterfaces()method return Enumeration<NI> as legacy codes.

for(NetworkInterface ni : networkInterfaces){

System.out.println("Name = " + ni.getName());

System.out.println("Display Name = " + ni.getDisplayName());

System.out.println("Loopback = " + ni.isLoopback());

System.out.println("Up and running = " + ni.isUp());

System.out.println("MTU = " + ni.getMTU());

// MTU stands for maximum transmission unit, the max length of a single datagram message

System.out.println("Supports multicast = " + ni.supportsMulticast());

for(NetworkInterface subNi : Collections.list(ni.getSubInterfaces())){

System.out.println(" SubInterface --> " + subNi);

}

for(InterfaceAddress ia : ni.getInterfaceAddresses()){

System.out.println(" InterfaceAddress --> " + ia);

}

System.out.println();

}

}catch(SocketException se){

se.printStackTrace();

}

}

}