import java.nio.*;
import java.nio.channels.*;
import java.nio.charset.*;

public class DateServer {
    public static void main(String[] args) throws java.io.IOException {
        // Get a CharsetEncoder for encoding the text sent to the client
        CharsetEncoder encoder = Charset.forName("US-ASCII").newEncoder();

        // Create a new ServerSocketChannel and bind it to port 8000  
        // Note that this must be done using the underlying ServerSocket
        ServerSocketChannel server = ServerSocketChannel.open();
        server.socket().bind(new java.net.InetSocketAddress(8000));

        for(;;) {  // This server runs forever
            // Wait for a client to connect
            SocketChannel client = server.accept();  
            // Get the current date and time as a string
            String response = new java.util.Date().toString() + "\r\n";
            // Wrap, encode, and send the string to the client
            client.write(encoder.encode(CharBuffer.wrap(response)));
            // Disconnect from the client
            client.close();
        }
    }
}