ChatApp/Server.java at master · K-RD/ChatApp · GitHub

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import java.io.*;
import java.net.*;


class Server
{

    ServerSocket server;
    Socket socket;

    BufferedReader br;
    PrintWriter pr;


    // Consttructor
    public Server()
    {
        try {
            server=new ServerSocket(7777);
            System.out.println("Server is reday to accept connection..");
            System.out.println("Server is waiting....");
            socket=server.accept();

            br=new BufferedReader(new InputStreamReader(socket.getInputStream()));

            pr=new PrintWriter(socket.getOutputStream());

            startReading();
            startWriting();

        } catch (Exception e) {
            e.printStackTrace();
        }
    }

    public void startReading()
    {
        //  This Thread will read the data

        Runnable reader=()->{
            System.out.println("Reader started");

            try
            {
                while(!socket.isClosed())
                {


                    String msg=br.readLine();
                    if(msg.equals("exit"))
                    {
                        System.out.println("Client Terminated the chat.");
                        socket.close();
                        break;
                    }

                    System.out.println("Client: "+msg);

                }
            } catch (Exception e)
             {
                // e.printStackTrace();
                System.out.println("Connection is closed");
            }
        };
        new Thread(reader).start();
    }


    public void startWriting()
    {
        //  This Thread will write the data

        Runnable writer=()->{
            System.out.println("Writer started...");

            try
            {

                while(!socket.isClosed())
                {


                    BufferedReader brr1=new BufferedReader(new InputStreamReader(System.in));
                    String content=brr1.readLine();

                    pr.println(content);
                    pr.flush();

                    if(content.equals("exit"))
                    {
                        socket.close();
                        break;
                    }
                }
                System.out.println("Connection is closed");
            } catch (Exception e)
            {
                // e.printStackTrace();
            }
        };
        new Thread(writer).start();

    }

    public static void main(String[] args) {
        System.out.println("This is server...");
        new Server();
    }
}