Local Machine IP

/* Get Local IP and Hostname */
import java.io.*;
import java.net.InetAddress;

public class getIP {
	public static void main(String[] argv) throws Exception {
		InetAddress addr = InetAddress.getLocalHost();

		/* Get IP Address */
		System.out.println("IP Address: "+addr.getHostAddress());

		/* Get hostname */
		System.out.println("Hostname: "+addr.getHostName());
	}
}


/****** Output ******/
IP Address: 127.0.1.1

Hostname: localhost