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Exam 1z0-809 topic 1 question 16 discussion

Actual exam question from Oracle's 1z0-809
Question #: 16
Topic #: 1
[All 1z0-809 Questions]

Given the code fragment:
Map<Integer, String> books = new TreeMap<>();
books.put (1007, "A");
books.put (1002, "C");
books.put (1001, "B");
books.put (1003, "B");
System.out.println (books);
What is the result?

  • A. {1007 = A, 1002 = C, 1001 = B, 1003 = B}
  • B. {1001 = B, 1002 = C, 1003 = B, 1007 = A}
  • C. {1002 = C, 1003 = B, 1007 = A}
  • D. {1007 = A, 1001 = B, 1003 = B, 1002 = C}
Show Suggested Answer Hide Answer
Suggested Answer: B 🗳️
Reference:
TreeMap inherits SortedMap and automatically sorts the element's key
by Svetleto13 at April 20, 2021, 2:28 p.m.

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Svetleto13
Highly Voted 3 years, 9 months ago
B,tested.
upvoted 5 times
...
6c84cb9
Most Recent 6 months ago
B {1001=B, 1002=C, 1003=B, 1007=A}
upvoted 1 times
...
asdfjhfgjuaDCV
11 months ago
B is the correct answer
upvoted 1 times
...
steefaand
12 months ago
Selected Answer: B
TreeMap sorts keys in ascending order by default so answer is B.
upvoted 1 times
...
iSnover
1 year ago
Selected Answer: B
Looking at the reference type, it is a TreeMap, so it is ordered using the key, and as the key is of type "int", the correct answer is B.
upvoted 1 times
...
r1muka5
1 year, 11 months ago
Correct anwser is B
upvoted 1 times
...
kishanrao
2 years, 6 months ago
the Ans:B
upvoted 1 times
...
YasinGaber
2 years, 11 months ago
B, tested.
upvoted 1 times
...
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