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Exam 1z0-809 topic 1 question 58 discussion

Actual exam question from Oracle's 1z0-809
Question #: 58
Topic #: 1
[All 1z0-809 Questions]

Given the code fragment:
String str = "Java is a programming language";
ToIntFunction<String> indexVal = str: : indexOf; //line n1 int x = indexVal.applyAsInt("Java"); //line n2
System.out.println(x);
What is the result?

  • A. 0
  • B. 1
  • C. A compilation error occurs at line n1.
  • D. A compilation error occurs at line n2.
Show Suggested Answer Hide Answer
Suggested Answer: A 🗳️
by thetech at Dec. 5, 2019, 9:15 a.m.

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Chosen Answer:
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thetech
Highly Voted 5 years, 6 months ago
Answer is correct.
upvoted 7 times
...
6c84cb9
Most Recent 9 months, 2 weeks ago
A, tested
upvoted 1 times
...
6c84cb9
10 months, 3 weeks ago
A, tested
upvoted 1 times
...
shivkumarx
1 year, 3 months ago
Selected Answer: A
A, tested
upvoted 1 times
...
asdfjhfgjuaDCV
1 year, 3 months ago
A is the correct answer tested
upvoted 1 times
...
iSnover
1 year, 4 months ago
Selected Answer: A
A. Tested.
upvoted 1 times
...
steefaand
1 year, 4 months ago
Selected Answer: C
C is correct since indexOf requires 2 parameters (object that calls it and its argument). However only 1 parameter is provided.
upvoted 1 times
shivkumarx
1 year, 3 months ago
Incorrect, the indexOf() method has an overload which just takes a single string parameter. Correct answer is A
upvoted 1 times
...
...
steefaand
1 year, 4 months ago
Selected Answer: C
Line n1 doesnt compile since indexOf requires 2 arguments.
upvoted 1 times
...
WilsonKKerll
3 years, 3 months ago
A. Tested.
upvoted 1 times
...
Samriddji
3 years, 7 months ago
A, tested
upvoted 1 times
...
Community vote distribution
A (35%)
C (25%)
B (20%)
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