FileInputStream
Create an input stream for a file handle. Will create the needed file pointer.
Parameters
fileHandle
The file handle to use
mode
The mode to use to open the file.
Create an input stream for a file name. Will create the needed file pointer.
Parameters
pathName
The name of the file to open. If relative depends on the current working directory.
mode
The mode to use to open the file.
Directly wrap (and take ownership of) the file pointer given.