Get IP Address And MAC Address In Java

package com.TestProject;

import java.net.InetAddress;
import java.net.NetworkInterface;

public class TestClass {

  public static void main(String[] args) {

    try {
      InetAddress ip = InetAddress.getLocalHost();
      System.out.println("Current IP address : " + ip.getHostAddress());

      NetworkInterface nwi = NetworkInterface.getByInetAddress(ip);
      byte[] mac = nwi.getHardwareAddress();
      StringBuilder sb = new StringBuilder();
      for (int i = 0; i < mac.length; i++) {
        sb.append(String.format("%02X%s", mac[i], (i < mac.length - 1) ? "-" : ""));
      }
      System.out.println("MAC address:" + sb.toString());
    } catch (Exception ex) {
      System.out.println(ex.getMessage());
    }

  }
}

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