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Client Server Application

Posted on 1998-09-01
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Last Modified: 2010-03-30
Can someome give me the code for a client and server application using sockets? I did this in C but not java yet.
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Question by:joe7
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3 Comments
 
LVL 3

Accepted Solution

by:
mjenkins earned 200 total points
ID: 1223136
public class Client
{
        Socket s;
 
        public static void main( String args[] )
        {
                Client c = new Client();
                c.sendObject();
                c.close();
                System.out.println( "Done Sending" );
        }
 
        public Client()
        {
                try
                {
                        s = new Socket( "localhost", 10888 );
                }
                catch( Exception e )
                {
                        e.printStackTrace();
                        System.exit(0);
                }
        }
 
        public void sendObject()
        {
                try
                {
                        OutputStream out = s.getOutputStream();
                        ObjectOutputStream output = new ObjectOutputStream( out );
                        output.writeObject(new Character('a'));
                        output.writeObject(new Long(12345));
                        output.writeObject(new Double(123.456));
                        output.flush();
                        output.close();
                }
                catch( IOException e )
                {
                        e.printStackTrace();
                }
        }
 
        public void close()
        {
                try
                {
                        s.close();
                }
                catch( Exception e )
                {
                        e.printStackTrace();
                        System.exit(0);
                }
        }
}


import java.io.*;
 
public class Server
{
    ServerSocket s;
 
    public static void main( String args[] )
    {
        Server c = new Server();
        c.recvObject();
        System.out.println( "Done Recieving" );
    }
 
    public Server()
    {
        try
        {
            s = new ServerSocket( 10888, 10 );
        }
        catch( Exception e )
        {
            e.printStackTrace();
            System.exit(0);
        }
    }
 
    public void recvObject()
    {
 
        try
        {
            Socket s1 = s.accept();
            InputStream in = s1.getInputStream();
            ObjectInputStream input = new ObjectInputStream( in );
            Character c = (Character)input.readObject();
            Long l = (Long)input.readObject();
            Double d = (Double)input.readObject();
            input.close();
            s1.close();
            System.out.println( "SERVER RECIEVED: " + c + " " + l + " " + d );
        }
        catch( Exception e )
        {
            e.printStackTrace();
        }
    }
}


0
 
LVL 3

Expert Comment

by:mjenkins
ID: 1223137
The above is a simple Client and Server Application pair that just serializes a couple of objects and shoots them across the socket connection. Substitute your stuff for sendObject and recvObject. If you've done this in "C" then this should be sufficient. If it isn't, let me know and I'll fill in the blanks for you.
0
 

Author Comment

by:joe7
ID: 1223138
That's a lot easier than doing it in C! I should have done less points, I thought it was harder to do!
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