import com.example.fscript.FScript; public class Example { public static void main(String[] args) { FScript<Integer> fscript = new FScript<>(); double average = fscript.of(1, 2, 3, 4, 5) .mapToDouble(Integer::doubleValue) .average() .getAsDouble(); FScript<Integer> evenNumbers = fscript.of(1, 2, 3, 4, 5) .filter(number -> number % 2 == 0); } }