IP Address:
IP stands for Internet Protocol.
IP address is expressed as four decimal numbers ranging from 0 to 225,
separated by periods, with each of four numbers representing (8) bits of
the address for a total length of thirty-two (32) bits of the whole
address. This format is called dotted quad notation.
Every machine on the Internet has a unique number assigned to it, called an
IP Address. Without a unique IP address on your machine, you will jot be
able to communicate with other devices, users on over Internet.
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An IP address is a
numerical number label assigned to each device (e.g. computer, printer,
scanner etc) participating in a computer network that uses the Internet
Protocol for communication. It designates the specific location of a device
on the network. Every device on Internet has its unique IP address which
means no two devices on Internet can have same IP address.
An IP address consists
of 32 bits of information. These bits are divided into four sections
referred to as octets or bytes, each containing 1 byte(8 bits).
JAVA program to check IP Address:
import java.io.IOException;
import java.net.InetAddress;
//InetAddress This class represents an Internet Protocol (IP) address.
//An IP address is either a 32-bit or 128-bit unsigned number used by IP,
// a lower-level protocol on which protocols like UDP and TCP are built.
public class CheckingIPAddress
{
public static void main(String[] args) throws IOException {
InetAddress IP_address = InetAddress.getLocalHost();
//getLocalHost() Returns the address of the local host.
System.out.println("IP Address of my device is: "+IP_address.getHostAddress());
//getHostAddress() Returns the IP address string in textual presentation.
//returns the raw IP address in a string format.
}
}
