What will this test output? @Test public void test50() { List<Integer> numbers = List.of(1, 2, 3, 4, 5); numbers.stream() .map(x -> { System.out.println(x); return x; }) .filter(x -> x > 2) .map(x -> { System.out.println(x); return x; }) .toList(); }

This test creates a list of numbers from 1 to 5 and performs sequential processing using the Stream API.

Explanation of output:

• The first .map(x -> { System.out.println(x); return x; }) prints all elements of the list: 1, 2, 3, 4, 5.
• Then .filter(x -> x > 2) passes only numbers greater than 2: 3, 4, 5.
• The second .map(x -> { System.out.println(x); return x; }) prints only the filtered elements: 3, 4, 5.

The final output to the console will be:

1
2
3
4
5
3
4
5

Note that streams in Java are lazy, but the terminal operation .toList() triggers execution, so all elements will be processed and printed.