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Exam 1z0-829 topic 1 question 8 discussion

Actual exam question from Oracle's 1z0-829
Question #: 8
Topic #: 1
[All 1z0-829 Questions]

Given the code fragment:

What is the result?

  • A. 0 1 1 0
  • B. false true true Optional[NewYear]
  • C. 0 1 0 Optional[NewYear]
  • D. true true false NewYear
Show Suggested Answer Hide Answer
Suggested Answer: B 🗳️
by Samps at Feb. 10, 2024, 5:17 p.m.

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minhdev
1 week, 6 days ago
*Match returns boolean findFirst returns Optional Result: B is correct
upvoted 1 times
...
james2033
3 months ago
Selected Answer: B
package q08; import java.util.List; public class Q08 { public static void main(String[] args) { List<String> specialDays = List.of("NewYear", "Valentines", "Spring", "Labour"); System.out.print(specialDays.stream().allMatch(s -> s.equals("Labour"))); System.out.print(" " + specialDays.stream().anyMatch(s -> s.equals("Labour"))); System.out.print(" " + specialDays.stream().noneMatch(s -> s.equals("Halloween"))); System.out.print(" " + specialDays.stream().findFirst()); } } // Result: // false true true Optional[NewYear]
upvoted 1 times
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Samps
3 months, 1 week ago
Selected Answer: B
B is correct
upvoted 1 times
...

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C (25%)
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