Chaining Stream operations

import java.util.List;
import java.util.stream.Collectors;

public class Main {
    public static void main(String[] args) {
        List<String> features = List.of("records", "switch", "pattern", "sealed", "lambda");
        String joined = features.stream()
                .filter(word -> word.contains("a"))
                .map(String::toUpperCase)
                .sorted()
                .collect(Collectors.joining(" | "));

        System.out.println(joined);
    }
}