Using just HTML and CSS, Web designers can create dynamic Web pages.

Rewrite the echo function to generate two echoes back, each delay samples previous. (Hint: Start your index loop at 2*delay + 1, then access one echo sample at index-delay and another at index - 2*delay.)

What will be an ideal response?

Assuming that list is a List, explain in detail the stream pipeline:

``` list.stream() .filter(value -> value % 2 != 0) .reduce(0, Integer::sum) ```