[Ch15] DailyAdviceServer uses Channels.newOutputStream.

import java.io.IOException;

import java.io.PrintWriter;

import java.net.InetSocketAddress;

import java.net.ServerSocket;

import java.net.Socket;

import java.nio.channels.Channels;

import java.nio.channels.ServerSocketChannel;

import java.nio.channels.SocketChannel;

import java.util.Random;

public class DailyAdviceServer {

  public void go() {

    try {

      ServerSocket serverSock = new ServerSocket(4242);

      ServerSocketChannel serverSocketChannel = ServerSocketChannel.open();

      serverSocketChannel.bind(new InetSocketAddress("localhost", 4242));

      while (true) {

        Socket sock = serverSock.accept();

        SocketChannel sock = serverSocketChannel.accept();

        PrintWriter writer = new PrintWriter(sock.getOutputStream());

        PrintWriter writer = new PrintWriter(Channels.newOutputStream(sock));

        String advice = getAdvice();

        writer.println(advice);

        writer.close();