1Z0-829 practice questions 31–40

1. Question 31 · 52 in bank

   Select 2

   Given:

   

   and

   

   Which two should the module-info file include for it to represent the service provider interface? (Choose two.)

   • Aexports com.transport.vehicle.cars;
   • Bprovides com.transport.vehicle.cars.impl.CarImpl to com.transport.vehicle.cars.Car;
   • Crequires com.transport.vehicle.cars.Car;
   • Dexports com.transport.vehicle.cars.Car;
   • Erequires com.transport.vehicle.cars;
   • Fexports com.transport.vehicle;
   • Gprovides com.transport.vehicle.cars.Car with com.transport.vehicle.cars.impl.CarImpl;

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   Answer: AG

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2. Question 32 · 52 in bank

   Given the code fragment:

   

   What is the result?

   • ACan't logout
   • BLogged out at: 2021-01-12T21:58:00z
   • CA compilation error occurs at line n1.
   • DLogged out at: 2021-01-12T21:58:19.880z

   Show answer

   Answer: A

   Explanation

   package q04; import java.time.Instant; import java.time.temporal.ChronoUnit; public class Q04 { public static void main(String[] args) throws InterruptedException { // Login time: 2021-01-12T21:58:18.817Z Instant loginTime = Instant.now(); Thread.sleep(1000); // Logout time: 2021-01-12T21:58:19.880Z Instant logoutTime = Instant.now(); loginTime = loginTime.truncatedTo(ChronoUnit.MINUTES); // line n1 logoutTime = logoutTime.truncatedTo(ChronoUnit.MINUTES); if (logoutTime.isAfter(loginTime)) { System.out.println("Logged out at: " + logoutTime); } else { System.out.println("Can't logout"); } } } // Result: // Can't logout

   Source: Adapted from community discussion — james2033

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3. Question 33 · 52 in bank

   Given the Product class:

   

   and the Shop class:

   

   What is the result?

   • ACompilation fails.
   • BCookie 0.0 2.99
   • CCookie 2.99 2.99
   • DCookie 3.99 2.99
   • EAn exception is produced at runtime.
   • FCookie 0.0 0.0

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   Answer: B

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4. Question 34 · 52 in bank

   Given the code fragments:

   

   and:

   

   Which action prints Wagon : 200?

   • AAt line n1, implement the java.io.AutoCloseable interface.
   • BAt line n3, replace Car with LuxuryCar.
   • CAt line n1, implement the java.io.Serializable interface.
   • DAt line n3, replace readObject() with readLine().
   • EAt line n2, in the main method signature, add throws IOException, ClassNotFoundException.
   • FAt line n2, in the main method signature, add throws IOException, ClassCastException.

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   Answer: E

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5. Question 35 · 52 in bank

   Given:

   

   What is the result?

   • ASoftware Game read error
   • BSoftware Game Chess 0
   • CSoftware Game Software Game Chess 2
   • DSoftware Game Chess 2
   • ESoftware Game write error
   • FSoftware Game Software Game Chess 0

   Show answer

   Answer: D

   Explanation

   D is the correct answer. Software is printed from constructor of Software class & Game is printed from the constructor of Game class. new Game("chess",2) these values passed to Game constructor are serialized, then when de-serialized and printed, it prints raw string.

   Source: Adapted from community discussion — xplorerpj

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6. Question 36 · 52 in bank

   Given: Captions.properties file: user = UserName Captions_en.properties file: user = User name (EN) Captions_US.properties file: message = User name (US) Captions_en_US.properties file: message = User name (EN - US) and the code fragment:

   

   What is the result?

   • AUser name (EN - US)
   • BThe program throws a MissingResourceException.
   • CUserName
   • DUser name (EN)
   • EUser name (US)

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   Answer: D

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7. Question 37 · 52 in bank

   Given:

   

   and the code fragment:

   

   Which statement is true?

   • AThe program throws ClassCastException.
   • BThe program fails to compile.
   • CThe program throws StockException.
   • DThe program throws OutofStockException.

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   Answer: D

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8. Question 38 · 52 in bank

   Given:

   

   Which two modifications enable the code to print Open Close?

   • AReplace line n1 with: class Folder extends Closeable {
   • BReplace line n1 with: class Folder implements AutoCloseable {
   • CAt line n2, insert:
   • DReplace line n1 with: class Folder extends Exception {
   • EAt line n2, insert:

   Show answer

   Answer: B

   Explanation

   B and C correct. A is wrong cuz both Closeable and AutoCloseable are "interfaces", not classes. Therefore, the "implements" keyword must be used. D wrong. the fact that it is "final" and doesnt throw anything is fine, but it is missing the "public" keyword. trying to compile without "public" gives this error: "attempting to assign weaker access privileges; was public"

   Source: Adapted from community discussion — supersquax

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9. Question 39 · 52 in bank

   Given:

   

   and the code fragment:

   

   What is the result?

   • A100.00 CellPhone,ToyCar,Motor,Fan
   • B100.00 CellPhone,ToyCar
   • C300.00 CellPhone,ToyCar
   • D300.00 CellPhone,ToyCar,Motor,Fan

   Show answer

   Answer: D

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10. Question 40 · 52 in bank

    Given the code fragment:

    

    Which action sorts the book list?

    • AAt Line n2, replace books.sort() with books.stream().sort().
    • BAt Line n1, convert books type to mutable ArrayList type.
    • CAt Line n2, replace compareTo() with compare().
    • DAt Line n1, convert books type to mutable array type.

    Show answer

    Answer: B

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1Z0-829 practice, question 31. 52 questions available.