This program accepts the System name in LAN as Input and displays the IP Address and Physics Address of the system.
import java.net.InetAddress;
import java.net.NetworkInterface;
import java.net.SocketException;
import java.net.UnknownHostException;
import java.util.Scanner;
public class MacAddress {
public static void main(String[] args)
{
try
{
Scanner console = new Scanner(System.in);
System.out.println("Enter System Name: ");
String ipaddr = console.nextLine();
InetAddress address = InetAddress.getByName(ipaddr);
System.out.println("address = "+address);
NetworkInterface ni = NetworkInterface.getByInetAddress(address);
if (ni!=null)
{
byte[] mac = ni.getHardwareAddress();
if (mac != null)
{
System.out.print("MAC Address : ");
for (int i=0; i < mac.length; i++)
{
System.out.format("%02X%s", mac[i], (i < mac.length - 1) ? "-" :"");
}
}
else
{
System.out.println("Address doesn't exist or is not accessible/");
}
}
else
{
System.out.println("Network Interface for the specified address is not found");
}
}
catch(UnknownHostException | SocketException e)
{
}
}
}
Sample output
Enter System Name:
myhomepc
address = myhomepc/169.254.189.225
MAC Address : 08-00-27-00-C4-03
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