code: public static InetAddress getAddress() {
      	
          try {
          	return InetAddress.getByAddress(new byte[] {0,0,0,0});
              /*for (Enumeration e = NetworkInterface.getNetworkInterfaces();
                      e.hasMoreElements();) {
  
                  NetworkInterface ni = (NetworkInterface) e.nextElement();
                  System.out.println("NetworkInterface = " + ni.getName());
                  if (!ni.getName().contains("lo")) {
                      for (Enumeration ee = ni.getInetAddresses(); ee.hasMoreElements();) {
                          InetAddress ip = (InetAddress) ee.nextElement();
                          if (ip instanceof Inet4Address && ip.getAddress() != null) {
                              return ip;
                          }
                          //System.out.println("Ip's: " + ip.getHostAddress());
                      }
                  }
              }
              NetworkInterface lo = NetworkInterface.getByName("lo");
              if (lo != null) {
                  for (Enumeration ee = lo.getInetAddresses(); ee.hasMoreElements();) {
                      InetAddress ip = (InetAddress) ee.nextElement();
                      if (ip instanceof Inet4Address && ip.getAddress() != null) {
                          return ip;
                      }
                  }
              }
              
              NetworkInterface lo0 = NetworkInterface.getByName("lo0");
              if (lo0 != null) {
                  for (Enumeration ee = lo0.getInetAddresses(); ee.hasMoreElements();) {
                      InetAddress ip = (InetAddress) ee.nextElement();
                      if (ip instanceof Inet4Address && ip.getAddress() != null) {
                          return ip;
                      }
                  }
              }*/
          } catch (Exception e) {
              System.err.println("Error");
          }
          return null;
      }
docs: This method returns the address of the machine. It is needed to successfully communicate
  with emulators hosted into other machines.
  @return