Basic lambda expression

List<Integer> numbers = Arrays.asList(1, 2, 3, 4, 5);

List<Integer> evenNumbers =
                                   .filter(n -> n % 2 == 0)

In this example, the lambda expression n -> n % 2 == 0 is used as the predicate to filter out the odd numbers from the list.

Lambdas make it easier to write code in a more functional and concise style, especially when working with collections, streams, and functional interfaces. They promote the use of higher-order functions and enable more expressive and readable code.