charfiles.java

java网络编程方面的源码,其中有一个整合的聊天室,比较不错,建议大家下载练习,配合java网络编程技术内幕看

/*
 * Java Network Programming, Second Edition
 * Merlin Hughes, Michael Shoffner, Derek Hamner
 * Manning Publications Company; ISBN 188477749X
 *
 * http://nitric.com/jnp/
 *
 * Copyright (c) 1997-1999 Merlin Hughes, Michael Shoffner, Derek Hamner;
 * all rights reserved; see license.txt for details.
 */

import java.io.*;

public class CharFiles {
  public static void main (String[] args) throws IOException {
    FileReader fileReader = new FileReader (FileDescriptor.in);
    FileWriter fileWriter = new FileWriter (FileDescriptor.out);
    char[] buffer = new char[256];
    int numberRead;
    while ((numberRead = fileReader.read (buffer)) > -1) {
      String upper = new String (buffer, 0, numberRead).toUpperCase ();
      fileWriter.write (upper);
      fileWriter.flush ();
    }
  }
}