Client Socket Information
In this section, you will learn how to get client
socket information. This is a very simple program of java network. Here, we have
used the class named ClientSocketInformation.java that implement the
constructor of the Socket class passing two arguments as hostName
and TIME_PORT. This program throws an IOException for the exception
handling. This exception is thrown to indicate an I/O problem of some sort
occurred.
Here, we are going to explore a method to retrieve
the host name of the local system in a very simple way. In this way we find out
the Local address, Local host information, reuseAddress, and address of
the local system in a very simple manner.
Code Description
Here we are going to define about all the using
method.
isBound(): This
is a boolean type method. This method returns the binding state of the socket.
isConnected(): This method inform about the socket connectivity
that is connected from server or may not.
getSoTimeout(): This method returns
the setting for So_TIMEOUT 0 returns implies that the option is disabled.
getSoLinger(): This is the method returns setting for SO_LINGER. -1
returns imply that the option is disabled.
Here is code of this program:
import java.net.*;
import java.io.*;
import java.net.InetAddress;
public class ClientSocketInformation{
public static final short TIME_PORT = 135;
public static void main(String[] args) throws IOException{
String hostName= null;
try{
Socket socket= new Socket(hostName,TIME_PORT);
System.out.println();
System.out.println("Socket is =" + socket);
System.out.println("is socket bound? ="+ socket.isBound());
System.out.println("is socket Connected? ="+ socket.isConnected());
System.out.println("show time out = "+ socket.getSoTimeout());
System.out.println("so linger =" + socket.getSoLinger());
System.out.println("TCP no Delay =" + socket.getTcpNoDelay());
System.out.println("Traffic class =" + socket.getTrafficClass());
System.out.println("channel is =" + socket.getChannel());
System.out.println("Reuse address is =" + socket.getReuseAddress());
System.out.println("close =" + socket.isClosed());
InetAddress in= socket.getInetAddress();
System.out.println(in);
System.out.println("\n");
System.out.print("RAW IP Address - (byte[]) : ");
byte[] b1 = in.getAddress();
for (int i=0; i< b1.length; i++) {
if (i > 0) {
System.out.print(".");}
System.out.print(b1[i]);
}
System.out.println();
System.out.println("Is Loopback Address? : " + in.isLoopbackAddress());
System.out.println("Is Multicast Address? : " + in.isMulticastAddress());
System.out.println("\n");
InetAddress address = socket.getLocalAddress();
System.out.println("Local address =" + address);
}
catch (UnknownHostException e) {
e.printStackTrace();
}
catch (IOException e) {
e.printStackTrace();
}
}
}
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Here Output of this program:
C:\amar>javac ClientSocketInformation.java
C:\amar>java ClientSocketInformation
Socket is =Socket[addr=localhost/127.0.0.1,port=135,localport=1329]
is socket bound? =true
is socket Connected? =true
show time out = 0
so linger =-1
TCP no Delay =false
Traffic class =0
channel is =null
Reuse address is =false
close =false
localhost/127.0.0.1
RAW IP Address - (byte[]) : 127.0.0.1
Is Loopback Address? : true
Is Multicast Address? : false
Local address =/127.0.0.1
C:\amar> |
Download of
this program.
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