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Exam 1z0-851 topic 1 question 115 discussion

Actual exam question from Oracle's 1z0-851
Question #: 115
Topic #: 1
[All 1z0-851 Questions]

Given:
public static Iterator reverse(List list) {
Collections.reverse(list);
return list.iterator();
}
public static void main(String[] args) {
List list = new ArrayList();
list.add("1"); list.add("2"); list.add("3");
for (Object obj: reverse(list))
System.out.print(obj + ", ");
}
What is the result?

  • A. 3, 2, 1,
  • B. 1, 2, 3,
  • C. Compilation fails.
  • D. The code runs with no output.
  • E. An exception is thrown at runtime.
Show Suggested Answer Hide Answer
Suggested Answer: C 🗳️
Can only iterate over an array or an instance of java.lang.Iterable

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