Do you use lambda expressions in your work?

Yes, I use them actively.

Lambda expressions significantly improve the readability and conciseness of code, especially when working with functional interfaces and streams.

Examples of usage:

1. In the Collections Framework:

   // sorting a list of strings by length
   List<String> names = Arrays.asList("Alice", "Bob", "Charlie");
   names.sort((s1, s2) -> s1.length() - s2.length());
   

2. In the Stream API:

   // filtering and mapping elements
   List<Integer> numbers = Arrays.asList(1, 2, 3, 4, 5);
   List<Integer> evenSquares = numbers.stream()
                                      .filter(n -> n % 2 == 0) // filter
                                      .map(n -> n * n) // mapping
                                      .collect(Collectors.toList());
   

3. When working with multithreading (Runnable, Callable):

   // creating a task to run in a separate thread
   Runnable task = () -> System.out.println("Task accomplished!");
   new Thread(task).start();
   

4. When using functional interfaces:

   // using a predefined functional interface
   Consumer<String> printer = s -> System.out.println("Printing: " + s);
   printer.accept("Hello");
   

Lambda expressions help create more flexible and expressive code, following the paradigm of functional programming. It is important to choose their use correctly to avoid reducing readability in case of overly complex expressions.