In Code Sample:How does the client receives the object and prints the date
An Introduction to Socket Programming
(Continued from previous question...)
In Code Sample:How does the client receives the object and prints the date
The client, DateClient , does not have to
send any messages to the DateServer once a
connection has been established. It simply receives a
Date object that represents the current day
and time of the remote machine. The client receives the
object and prints the date as shown in Code Sample.
Code Sample: DateClient.java
import java.io.*;
import java.net.*;
import java.util.*;
public class DateClient {
public static void main(String argv[]) {
ObjectOutputStream oos = null;
ObjectInputStream ois = null;
Socket socket = null;
Date date = null;
try {
// open a socket connection
socket = new Socket("yourMachineNameORipAddress", 3000);
// open I/O streams for objects
oos = new ObjectOutputStream(socket.getOutputStream());
ois = new ObjectInputStream(socket.getInputStream());
// read an object from the server
date = (Date) ois.readObject();
System.out.print("The date is: " + date);
oos.close();
ois.close();
} catch(Exception e) {
System.out.println(e.getMessage());
}
}
}
To run this example, the first step is to replace
the bold line in DateClient with the
machine name or IP address where the DateServer
will run. If both, the DateServer and
DateClient , will run on the same machine
then you can use "localhost" or "127.0.0.1" as the machine
name. The next step is to compile the source files
DateServer.java and DateClient.java .
Then run the DateServer in one window (if you are
working under Windows) or in the background (if you are working
under UNIX) and run the DateClient . The client
should print the current date and time of the remote machine.
(Continued on next question...)
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