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1z0-816 – Java SE 11 Programmer II

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Showing 7–9 of 10 questions

Question 7

Given:

What is required to make the Foo class thread safe?

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  • ○

    No change is required.
  • ○

    Make the declaration of lock static.
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    Replace the lock constructor call with new ReentrantLock (true).
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    Move the declaration of lock inside the foo method.
Question 8

Which interface in the java.util.function package will return a void return type?

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  • ○

    Supplier
  • ○

    Predicate
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    Function
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    Consumer
Question 9

Given:

What is the output?

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  • ○

    :APPLE:ORANGE:BANANA appleorangebanana
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    :APPLE:ORANGE:BANANA
  • ○

    APPLE:apple
    ORANGE:orange
    BANANA:banana
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    appleorangebanana
    :APPLE:ORANGE:BANANA
  • ○

    apple:APPLE orange:ORANGE banana:BANANA