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Free 1z0-809 – Java SE 8 Programmer II Practice Test Question

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Showing 4–6 of 15 questions

Question 4

Given:

Which two interfaces can you use to create lambda expressions? (Choose two.)

Select all that apply, then click Submit answer.

  • ○

    T
  • ○

    R
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    P
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    S
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    Q
  • ○

    U
Question 5

Given:

and the code fragment:

Which two code fragments, when inserted at line n1 independently, enable the code to print TruckCarBike?

Select all that apply, then click Submit answer.

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    .sorted ((v1, v2) -> v1.getVId() < v2.getVId())
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    .sorted (Comparable.comparing (Vehicle: :getVName)).reversed ()
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    .map (v -> v.getVid())
    .sorted ()
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    .sorted((v1, v2) -> Integer.compare(v1.getVId(), v2.getVid()))
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    .sorted(Comparator.comparing ((Vehicle v) -> v.getVId()))
Question 6

Given:

public enum USCurrency {

PENNY (1),

NICKLE(5),

DIME (10), QUARTER(25); private int value;

public USCurrency(int value) { this.value = value;

}

public int getValue() {return value;}

} public class Coin {

public static void main (String[] args) { USCurrency usCoin =new USCurrency.DIME;

System.out.println(usCoin.getValue()):

}

}

Which two modifications enable the given code to compile? (Choose two.)

Select all that apply, then click Submit answer.

  • ○

    Nest the USCurrency enumeration declaration within the Coin class.
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    Make the USCurrency enumeration constructor public.
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    Remove the new keyword from the instantion of usCoin.
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    Make the getValue() method public.
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    Add the final keyword in the declaration of value.