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Exam 1z0-819 topic 1 question 56 discussion

Actual exam question from Oracle's 1z0-819
Question #: 56
Topic #: 1
[All 1z0-819 Questions]

Given:



What is the result?

  • A. A java.util.NoSuchElementException is thrown at run time.
  • B. Ans : a
  • C. The compilation fails.
  • D. Ans :
Show Suggested Answer Hide Answer
Suggested Answer: A 🗳️
by Ankit1010 at Feb. 5, 2023, 9 p.m.

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aruni_mishra
7 months, 3 weeks ago
.get() : If a value is present, returns the value, otherwise throws NoSuchElementException.
upvoted 1 times
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d7bb0b2
1 year ago
public static void main(String[] args) { System.out.println("Ans:" + convert("a").get()); } private static Optional<Integer> convert(String s){ try{ return Optional.of(Integer.parseInt(s)); }catch (Exception e){ return Optional.empty(); } } A is correct
upvoted 2 times
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Omnisumem
1 year, 5 months ago
Selected Answer: A
Tested: A.
upvoted 1 times
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tmuralimanohar
1 year, 7 months ago
Answer: A
upvoted 1 times
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Stavok
1 year, 8 months ago
Selected Answer: A
A is correct
upvoted 1 times
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RP384
1 year, 12 months ago
Selected Answer: A
NoSuchElementException at runtime
upvoted 1 times
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Ankit1010
1 year, 12 months ago
Since Integer.parseInt("a") will throw NumberFormatException. Empty Optional will be returned. and if we try to get() from Empty Optional it results into NoSuchElementException. So, correct answer is A
upvoted 2 times
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C (25%)
B (20%)
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