Question

can anyone show me how to Use the java.net.ServerSocket class to open a port and listen for new connections ( Use the java.net.ServerSocket.accept() method to accept a new client connection. You can read from and write to the data streams in java.net.ServerSocket.getOutputStream() and java.net.ServerSocket.getInputStream() just as if they were files or standard input/outpu

Answer 1

public class Server {

   private static final int port = 1313;
   public static void main(String[] args) throws IOException, AWTException {
       ServerSocket server = null;
       try {
           //opeing the port and listening connections
           server = new ServerSocket(port);
           System.out.println("Server socket ready on port: " + port);
       } catch (IOException e) {
           System.err.println("Could not listen on port: " + port);
           System.out.println(e);
           System.exit(-1);
       }
           Socket socket = null;
           try {
               //ready to accept the connections
               socket = server.accept();
               DataOutputStream dout = new DataOutputStream(socket.getOutputStream());
               //sending hello to the connected clients
               dout.writeUTF("Hello..");
               dout.flush();
           } catch (Exception e) {
               server.close();
               e.printStackTrace();
           }
   }
}

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