填空题

请在下列程序的空白处,填上适当的内容:
  Import java. awt. *;
  Import java. util. *;
  Class BufferTest{
  Public static void main(string args[])
  Throws IOException{
  FileOutputStream unbuf=
  new FileOutputStream(“test.one”) ;
  BufferedOutputStream buf=
  new 【11】 (new FileOutputStream(“test.two”));
  System.out.println
  (“write file unbuffered: ” + time(unbuf) + “ms”);
  System.out.println
  (“write file buffered: ” + time(buf) + “ms”);
  }
  Static int time (OutputStream os)
  Throws IOException{
  Date then = new Date();
  for (int i=0; i<50000; i++){
  os.write(1);
  }
  }
  os.close();
  return(int)(()new Date()).getTime() - then.getTime());
  }
  

【参考答案】

BufferedOutputStream
热门 试题