Answer 1

// Argha Das it works but there are invisible ilegal characters \u00a0, try this

import java.net.*;
public class Program
{
public static void main(String[] args) {
InetAddress ipAddress;
try {
ipAddress = InetAddress.getLocalHost();
System.out.println(ipAddress);
} catch (UnknownHostException uhe) {
uhe.printStackTrace();
}
}
}