[填空題] 請在下列程序的空白處，填上適當?shù)膬?nèi)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______(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());

BufferedOutputStream

從前面變量buf的類型可以看出應為BuffeIed-OutputStream。