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Socket programming in Java

September 9, 2011 by ProjectsGeek Leave a Comment

Socket programming in Java
Client Code

import java.io.*;
import java.net.*;
class Client_1
{
    public static void main (String[] args)
    {
        int port =6543;
        String add=”localhost”;
        try
        {
            InetAddress ia=InetAddress.getByName(add);
            Socket socket =new Socket(add,port);
            InputStream input=socket.getInputStream();
            OutputStream output=socket.getOutputStream();
            DataInputStream in=new DataInputStream(input);
            DataOutputStream out=new DataOutputStream(output);
            BufferedReader enter=new BufferedReader(new InputStreamReader(System.in));
            String line=null;
            while(true)
            {
                System.out.print(“Message to server : “);
                line=enter.readLine();
                out.writeUTF(line);
                out.flush();
                line=in.readUTF();
                System.out.println(“Message from server : ” + line);
            }
        }
        catch (Exception ex)
        {
        }
    }
}
 Server Code
import java.net.*;
import java.io.*;
class ser2 im
{

}
class Server_1
{
    public static void main (String[] args)
    {
        int port = 6543;
        try
        {
            ServerSocket ss = new ServerSocket(port);
            System.out.println(“Waiting for client:: “);
            Socket socket=ss.accept();
            System.out.println(“Client found… “);
            InputStream input=socket.getInputStream();
            OutputStream output=socket.getOutputStream();
            DataInputStream in=new DataInputStream(input);
            DataOutputStream out=new DataOutputStream(output);
            BufferedReader enter=new BufferedReader(new InputStreamReader(System.in));
            String line=null;
            while(true)
            {
                line=in.readUTF();
                System.out.println(“Message From Client::  “+line);
                System.out.print(“Message to Client : “);
                line=enter.readLine();
                out.writeUTF(line);
                out.flush();
            }
        }
        catch (Exception ex)
        {
            ex.printStackTrace();
        }
    }
}   

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Filed Under: Java Assignments

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