Implementation of Transmission Control Protocol (TCP) an Echo Program

This is a java program that echos the text sent from the client using the socket connection established using the TCP.

echos.java:

     import java.io.*;
    import java.net.*;
    class echos {
        public static void main(String args[]) throws Exception
        {
            String echoin;
            ServerSocket svrsoc;
            Socket soc;
            BufferedReader br;
            try
            {
                svrsoc = new ServerSocket(5000);
                soc = svrsoc.accept();
                br = new BufferedReader (new InputStreamReader(soc.getInputStream()));
                PrintStream ps = new PrintStream(soc.getOutputStream());
                System.out.println("Echo Initiated:");
                while((echoin=br.readLine())!=null)
                {
                    if(echoin.equals("end"))
                    {
                        System.out.println("Echoing Terminated");
                        br.close();
                        break;
                    }
                    else
                        ps.println(echoin);
                }
            }
            catch(UnknownHostException e)
            {
                System.out.println(e.toString());
            }
            catch(IOException ioe)
            {
                System.out.println(ioe);
            }
        }  
    }

echoc.java:

    import java.io.*;
    import java.net.*;
    class echoc {
    public static void main(String args[]) throws Exception   
    {
        String sockin;
        try
        {
            Socket csock = new Socket(InetAddress.getLocalHost(),5000);
            BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
            BufferedReader br_sock = new BufferedReader(new InputStreamReader(csock.getInputStream()));
            PrintStream ps = new PrintStream(csock.getOutputStream());
            System.out.println("Start echoing...");
            while((sockin=br.readLine())!=null)
            {
                ps.println(sockin);
                if(sockin.equals("end"))
                    break;
                else
                    System.out.println("server:"+br_sock.readLine());
    
            }
        }
    catch(UnknownHostException e)
    {
        System.out.println(e.toString());
    
    }
    catch(IOException ioe)
    {
        System.out.println(ioe);
    }
    }
    }

Output: