Free Oracle 1Z0-816 Exam Dumps Questions & Answers

Which interface in the java.util.function package can return a primitive type?

• A.LongConsumer
• B.ToDoubleFunction
• C.Supplier
• D.BiFunction

Given:

What is the result?

• A.3
• B.10126 3
• C.6104 3
• D.6910 3

Given:
LocalDate d1 = LocalDate.of(1997,2,7);
DateTimeFormatter dtf =
DateTimeFormatter.ofPattern( /*insert code here*/ );
System.out.println(dtf.format (d1));
Which pattern formats the date as Friday 7th of February 1997?

• A."eeee d+"th of"+ MMMM yyyy"
• B."eeee dd'th of' MMM yyyy"
• C."eeee d'th of' MMMM yyyy"
• D."eeee dd+"th of"+ MMM yyyy"

Given:

What will secure this code from a potential Denial of Service condition?

• A.On Line 3, enclose processData(dataReader) with try with resources.
• B.After Line 4, add indexReader.close().
• C.On Line 1, use try with resources when opening each dataReader.
• D.Before Line 1, check the size of dataFiles to make sure it does not exceed a threshold.
• E.After Line 3, add dataReader.close().

Given:

and:

Which code, when inserted on line 10, prints the number of unique localities from the roster list?

• A..map(Employee::getLocality)
  .distinct()
  .count();
• B.map(e -> e.getLocality())
  .count();
• C..filter(Employee::getLocality)
  .distinct()
  .count();
• D..map(e -> e.getLocality())
  .collect(Collectors.toSet())
  .count();