[Ch15] SimpleChatClient uses Channels.newReader and newWriter.

import java.awt.BorderLayout;

import java.awt.event.ActionEvent;

import java.awt.event.ActionListener;

import java.io.BufferedReader;

import java.io.IOException;

import java.io.InputStreamReader;

import java.io.PrintWriter;

import java.net.Socket;

import java.io.*;

import java.net.InetSocketAddress;

import java.nio.channels.Channels;

import java.nio.channels.SocketChannel;

import java.nio.charset.StandardCharsets;

public class SimpleChatClient {

  private JTextArea incoming;

  private void setUpNetworking() {

    try {

      Socket socket = new Socket("127.0.0.1", 5000);

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

      reader = new BufferedReader(streamReader);

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

      SocketChannel socketChannel = SocketChannel.open(new InetSocketAddress("127.0.0.1", 5000));

      reader = new BufferedReader(Channels.newReader(socketChannel, StandardCharsets.UTF_8));

      writer = new PrintWriter(Channels.newWriter(socketChannel, StandardCharsets.UTF_8));

      System.out.println("networking established");

    } catch (IOException ex) {

      ex.printStackTrace();