FilterInputStream

[Hans Li]

I want to construct an instance of FilterInputStream as
FilterInputStream fi=new FilterInputStream(System.in);
but compiler say it's error.
I don't knoe how to construct it.
Thnak you

[Oliver Grass]

Hi Hans,
you can't create an instance of a FilterInputStream directly, cause the Constructor is protected.
You should use one of the already defined subclasses, for example BufferedInputStream...
Or you can define your own FilterInputStream by subclassing FilterInputStream.
Hope that helps
Oliver

Originally posted by Hans Li:
I want to construct an instance of FilterInputStream as
FilterInputStream fi=new FilterInputStream(System.in);
but compiler say it's error.
I don't knoe how to construct it.
Thnak you

[Bin Zhao]

Pay attention to FileInputStream 's constructors:
FileInputStream(File file)
FileInputStream(FileDescriptor fdObj)
FileInputStream(String name)
System.in is an InputStream
how can it be taken as a parameter to FileInputStream 's constructors?
Bin Zhao