Given the code fragment: ``java List<String> empDetails = Arrays.asList("^100, Robin, HR", "^200, Mary, AdminServices", "^101, Peter, HR"); empDetails.stream() .filter(s-> s.contains("^")) .sorted()…

Question

List<String> empDetails = Arrays.asList("^100, Robin, HR", "^200, Mary, AdminServices", "^101, Peter, HR");
empDetails.stream()
 .filter(s-> s.contains("^"))
 .sorted()
 .forEach(System.out::println); //line n1

Options

• A100, Robin, HR 101, Peter, HR
• BA compilation error occurs at line n1.
• C101, Peter, HR 200, Mary, AdminServices
• D100, Robin, HR 200, Mary, AdminServices 101, Peter, HR

• A
  9% (4)
• B
  5% (2)
• C
  84% (37)
• D
  2% (1)

Explanation

Option C is correct because the filter operation retains only strings containing "^" - eliminating "100, Robin, HR" (no caret) and keeping "^200, Mary, AdminServices" and "^101, Peter, HR". The subsequent sorted() applies natural lexicographic ordering, placing "^101..." before "^200..." (since '1' < '2'), producing the two-line output matching C.

Why the distractors are wrong:

• A is wrong because it includes "100, Robin, HR", which is filtered out (no ^), and omits "200, Mary, AdminServices".
• B is wrong because the code compiles and runs without error - System.out::println is a valid method reference for Consumer<String>.
• D is wrong because it shows all three strings in their original, unsorted insertion order, ignoring both the filter and the sort.

Memory tip: Think "FSF" - Filter first, then Sort, then ForEach. Always trace what survives the filter before worrying about ordering; exam traps often sneak in elements that look like they belong but never pass the predicate.

No community discussion yet for this question.