The video tutorial covers file and directory operations in Java, focusing on listing, filtering, reading, and writing files. It introduces Java NIO, a package from Java 7 and 8, and discusses the use of streams and functional programming concepts like lambda expressions and predicates. The tutorial emphasizes modern file handling techniques in Java, moving away from older methods.

Describe how Java NIO differs from traditional file handling in Java.

What role do lambda expressions play in file operations in Java?