Java-Buddy

Java example to get MAC address using NetworkInterface:

package javamyip;
import java.net.InetAddress;
import java.net.NetworkInterface;
import java.net.SocketException;
import java.util.Collections;
import java.util.Enumeration;
import java.util.logging.Level;
import java.util.logging.Logger;
/**
 * @web http://java-buddy.blogspot.com/
 */
public class JavaMyIP {
 public static void main(String[] args) {
 displayMyIP();
 }
 
 static void displayMyIP(){
 Enumeration<NetworkInterface> nets;
 try {
 nets = NetworkInterface.getNetworkInterfaces();
 for (NetworkInterface netint : Collections.list(nets)){
 System.out.printf(netint.getDisplayName() +"\n");
 Enumeration<InetAddress> inetAddresses = netint.getInetAddresses();
 for (InetAddress inetAddress : Collections.list(inetAddresses)) {
 System.out.printf("InetAddress: %s\n", inetAddress);
 }
 
 byte[] mac = netint.getHardwareAddress();
 if(mac != null){
 StringBuilder macAddr = new StringBuilder();
 for (int i = 0; i < mac.length; i++) {
 macAddr.append(String.format("%02X%s", mac[i], (i < mac.length - 1) ? ":" : "")); 
 }
 System.out.printf("Hardware address (MAC): [%s]\n", macAddr.toString());
 }
 
 System.out.printf("\n");
 }
 } catch (SocketException ex) {
 Logger.getLogger(JavaMyIP.class.getName()).log(Level.SEVERE, null, ex);
 }
 }
}

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