（ FileInputStream ）下面关于 FileInputStream 类型说法正确的是：
举一反三
- 下面关于FileInputStream和FileOutputStream的说法中,错误的是()
- 实现字符流的写操作类是(),实现字符流的读操作类是() A: Writer、FileReader B: Writer、FileInputStream C: FileInputStream、Writer D: FileInputStream、FileOutputStream
- FileInputStream类是InputStream类的子类。 A: 正确 B: 错误
- 下列哪个选项定义了带有缓存的文件字节输入流 A: BufferedInputStream bis = new BufferedInputStream(new FileInputStream(...)); B: BufferedOutputStream bos = new BufferedOutputStream(new FileInputStream(...)); C: FileInputStream fis = new FileInputStream(new BufferedInputStream(...)); D: FileOutputStream fis = new FileOutputStream(new BufferedOutputStream(...));
- 下面那些流是字节流？ A: FileReader B: FileInputStream C: DataOutputStream D: ObjectInputStream