Java Files and Dialogs - Quiz

1.	When does the `getParent()` method in the `File` class return `null`? Please select the best answer.
	A.	When the file is a directory
	B.	When the file has no parent
	C.	When the file is a shortcut, symbolic link, or alias
	D.	Never. If there's a problem, `getParent()` throws an `IOException`
	E.	When the `getParent()` method is overloaded.

2.	To implement the `FilenameFilter` interface you must provide an implementation for which of the following methods? Please select the best answer.
	A.	`filter()`
	B.	`show()`
	C.	`display()`
	D.	`open()`
	E.	`accept()`

3.	Java provides a means of accomplishing all of the actions listed below except one. Which action cannot be accomplished by using Java? Please select the best answer.
	A.	Create a new file
	B.	Append data to an existing file
	C.	Create a new directory
	D.	Set file permissions atomically across all platforms with a single Java method
	E.	Move a file to its parent directory