Hello Raspberry Pi

The following example program lists all the network interfaces and their addresses on a machine, run on Raspberry Pi 2/Raspbian Jessie.


JavaListInetAddress.java

import java.net.InetAddress;
import java.net.NetworkInterface;
import java.net.SocketException;
import java.util.Collections;
import java.util.Enumeration;
public class JavaListInetAddress {
 public static void main(String[] args) throws SocketException {
 Enumeration<NetworkInterface> nets = NetworkInterface.getNetworkInterfaces();
 for (NetworkInterface netint : Collections.list(nets))
 displayInterfaceInformation(netint);
 }
 
 static void displayInterfaceInformation(NetworkInterface netint) throws SocketException {
 System.out.printf("Display name: %s\n", netint.getDisplayName());
 System.out.printf("Name: %s\n", netint.getName());
 Enumeration<InetAddress> inetAddresses = netint.getInetAddresses();
 for (InetAddress inetAddress : Collections.list(inetAddresses)) {
 System.out.printf("InetAddress: %s\n", inetAddress);
 }
 System.out.printf("\n");
 }
 
}

reference: https://docs.oracle.com/javase/tutorial/networking/nifs/listing.html

Related:
- Java code to listing Network Interface Addresses, run on Windows 10
- Python code to find my IP address, run on Raspberry Pi/Raspbian Jessie
- C example to getting IP address from a network interface, run on Raspberry Pi/Raspbian Jessie

Next:
- Java to list Network Interface Parameters (include MAC address)