what is the difference in using InputStream instead of FileInputStream while creating the FileInputStream object

Question

This may be a silly one, but I want to know the background operation difference.

1. InputStream is = new FileInputStream(filepath);
2. FileIn

Answer 1

There is no difference. In each case you are creating a FileInputStream. The first is probably better programming style in that you should generally use a classes interface instead of the concrete class to allow for flexibility (i.e you decide to use a BufferedInputStream).