下列程序运行结果是()? package book.chapter8; import java.io.*; public class TextFileReaderWriter { public static void main(String args[]) throws IOException { String str = "你好!Java"; //定义写入文件的字符串 File file = new File("file.txt"); file.createNewFile(); //创建新文件 FileWriter fout = new FileWriter(file); //创建文件输出流对象 fout.write(str); //写操作 System.out.println("write to file :" + file.getName()); FileReader fin = new FileReader(file); //创建文件输入流对象 System.out.println("read from file :" + file.getName()); char[] chars = new char[10]; while (fin.read(chars) != -1) { //读操作 System.out.println(chars); } fin.close(); fout.close(); } }