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Oracle Exam 1Z0-829 Topic 1 Question 5 Discussion

Actual exam question for Oracle's 1Z0-829 exam

Question #: 5
Topic #: 1

[All 1Z0-829 Questions]

Given the code fragments:

Which action prints Wagon : 200?

AAt line n1, implement the java.io, Serializable interface.

BAt line n3, replace readObject (0 with readLine().

CAt Line n3, replace Car with LuxurayCar.

DAt Line n1, implement the java.io.AutoCloseable interface

EAt line n2, in the main method signature, add throws IOException, ClassCastException.

FAt line n2, in the main method signature, add throws IoException, ClassNotFoundException.

Show Suggested Answer

Suggested Answer: F

The code fragment is trying to read an object from a file using the ObjectInputStream class. This class throws an IOException and a ClassNotFoundException. To handle these exceptions, the main method signature should declare that it throws these exceptions. Otherwise, the code will not compile. If the main method throws these exceptions, the code will print Wagon : 200, which is the result of calling the toString method of the LuxuryCar object that was written to the file.Reference:ObjectInputStream (Java SE 17 & JDK 17) - Oracle,ObjectOutputStream (Java SE 17 & JDK 17) - Oracle

by Alishia at Nov 21, 2023, 04:29 PM

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az-700 pass4success az-104 200-301 200-201 cissp 350-401 350-201 350-501 350-601 350-801 350-901 az-720 az-305 pl-300

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