Java AsynchronousSocketChannel create client

import java.io.IOException;
import java.net.InetSocketAddress;
import java.nio.ByteBuffer;
import java.nio.channels.AsynchronousSocketChannel;
import java.util.Scanner;
import java.util.concurrent.ExecutionException;
import java.util.concurrent.Future;

public class Main {

   public static void main(String[] args) {
      try {//from  w  ww  .jav  a 2s .com
         AsynchronousSocketChannel client = AsynchronousSocketChannel.open();
         InetSocketAddress address = new InetSocketAddress("localhost", 5000);

         Future<Void> future = client.connect(address);
         System.out.println("Client: Waiting for the connection to complete");
         future.get();

         String message = "";
         while (!message.equals("quit")) {
            System.out.print("Enter a message: ");
            Scanner scanner = new Scanner(System.in);
            message = scanner.nextLine();
            System.out.println("Client: Sending ...");
            ByteBuffer buffer = ByteBuffer.wrap(message.getBytes());
            System.out.println("Client: Message sent: " + new String(buffer.array()));
            client.write(buffer);
         }

      } catch (IOException | InterruptedException | ExecutionException ex) {
         ex.printStackTrace();
      }
   }

}