What are Java Lambda Expressions and Streams?

Can you explain what Java Lambda expressions are?

Sure! Java Lambda expressions are a way to provide clear and concise syntax for writing anonymous methods. They enable you to treat functionality as a method argument, or to create a concise way to express instances of single-method interfaces (functional interfaces).

How do Lambda expressions work with Streams in Java?

Lambda expressions work seamlessly with Streams in Java. They allow you to pass behavior as parameters to the Stream API, enabling operations like filtering, mapping, and reducing data in a functional style.

Can you give me an example of using a Lambda expression with a Stream?

Absolutely! For example, you can use a Lambda expression to filter a list of integers to only include even numbers: List<Integer> evens = numbers.stream().filter(n -> n % 2 == 0).collect(Collectors.toList());.

What are some benefits of using Lambda expressions and Streams?

The benefits include more readable and concise code, easier parallel processing, and the ability to leverage functional programming concepts in Java.