Which class contains a method for determining whether a file

Which class contains a method for determining whether a file is a directory?

File

PrintWriter

Scanner

System

Which Exception will be thrown if you try to open and read from a file that doesn\'t exist?

NullPointerExcepter

LinkageError

IOException

RuntimeException

Solution

1 .

File class contains a method for determining whether a file is a directory.

Option 1 is correct choice.

2.

IOException will be thrown if you try to open and read from a file that doesn\'t exist.

Option 3 is correct choice.