ProtocolFamily is a java Interface. The java.net.ProtocolFamily represents a family of communication protocols. Java.net.StandardProtocolFamily implements ProtocolFamily Interface.
public interface ProtocolFamily
Methods of java.net.ProtocolFamily
java.net.ProtocolFamily interface contains only one method:
| S.No. | Method | Description | Return Type |
|---|---|---|---|
| 1. | name() | name() method returns the name of the protocol family | String |
Use of ProtocolFamily Interface
| S.No. | Package | Modifier and Type | Name | Description |
|---|---|---|---|---|
| 1. | java.net | class | StandardProtocolFamily | StandardProtocolFamily class defines the standard families of communication protocols. |
| 2. | java.nio.channels | static DatagramChannel | DatagramChannel.open(ProtocolFamily family) | DatagramChannel.open() static method opens a datagram channel. |
| 3. | java.nio.channels.spi | abstract DatagramChannel | SelectorProvider.openDatagramChannel( ProtocolFamily family) | SelectorProvider.openDatagramChannel Opens a datagram channel. |
Java Program for Better Understanding of the ProtocolFamily Interface
Java
// Java Program to get Protocol// family for an IP Address // import Guava libraryimport com.google.common.net.InetAddresses;import java.io.*;import java.net.*; class GFG { public static void main(String[] args) { try { // to get the ip address of InetAddress ip = InetAddress.getByName("45.22.30.39"); System.out.println("Host Name is " + ip.getHostName()); // getProtocolFamily() will check and return the // protocol family of the given IP ProtocolFamily protocolFamily = getProtocolFamily(ip); System.out.println("Protocol family of the " + ip.getHostName() + " is " + protocolFamily); } catch (Exception e) { System.out.println("Some exception" + e.getMessage()); } } public static ProtocolFamily getProtocolFamily(InetAddress inetAddress) { // to check if address is valid or not if (InetAddresses.isInetAddress( inetAddress.getHostName())) { // if address is valid // will return the protocol family of the // address return StandardProtocolFamily.INET; } else { // address is not valid System.out.println( "Address " + inetAddress + "is invalid hence can't determine the protocol family"); } return StandardProtocolFamily.INET; }} |
Output
Host Name is 45.22.30.39 Protocol family of the 45.22.30.39 is INET
