[Ch15] Updating client to use serversocketchannel

package ch15;

import java.io.BufferedReader;

import java.io.IOException;

import java.io.InputStreamReader;

import java.net.Socket;

import java.net.InetSocketAddress;

import java.nio.ByteBuffer;

import java.nio.channels.SocketChannel;

public class DailyAdviceClient {

  public void go() {

    try {

      Socket s = new Socket("127.0.0.1", 4242);

      InetSocketAddress address = new InetSocketAddress("localhost", 4242);

      SocketChannel socketChannel = SocketChannel.open(address);

      InputStreamReader streamReader = new InputStreamReader(s.getInputStream());

      BufferedReader reader = new BufferedReader(streamReader);

      ByteBuffer buffer = ByteBuffer.allocate(256);

      socketChannel.read(buffer);

      String result = new String(buffer.array()).trim();

      String advice = reader.readLine();

      System.out.println("Today you should: " + advice);

      System.out.println("Today you should: " + result);

      reader.close();

      socketChannel.close();

    } catch (IOException ex) {

      ex.printStackTrace();

    }