Question 1

When an exception is thrown by code in the try block, the JVM begins searching the try statement for a catch clause that can handle it and passes control of the program to

Accepted Answer

A)   the last catch clause that can handle the exception.
B)   each catch clause that can handle the exception.
C)   the first catch clause that can handle the exception.
D)   the statement that appears immediately after the catch block.

Question 2

To write data to a binary file, you create objects from the following classes:

Accepted Answer

A)   File and Scanner.
B)   BinaryFileWriter and BinaryDataWriter.
C)   FileOutputStream and DataOutputStream.
D)   File and PrintWriter.

Question 3

In a try statement, the try clause must appear first, followed by all of the catch clauses, followed by the optional finally clause.

Accepted Answer

A) True 
 B)False

Question 4

What will the following code display?
String input = "99#7";
Int number;
Try
{
Number = Integer.parseInt(input) ;
}
Catch(NumberFormatException ex) 
{
Number = 0;
}
Catch(RuntimeException ex) 
{
Number = 1;
}
Catch(Exception ex) 
{
Number = -1;
}
System.out.println(number) ;

Accepted Answer

A)   -1
B)   0
C)   1
D)   99

Question 5

In Java, there are two categories of exceptions:

Accepted Answer

A)   unchecked and checked.
B)   runtime and compile-time.
C)   critical and nominal.
D)   static and dynamic.

Question 6

When an object is serialized, it is converted into a series of bytes that contain the object's data.

Accepted Answer

A) True 
 B)False  True

Question 7

Beginning in Java 7, you can use ________ to reduce a lot of duplicated code in a try statement that needs to catch multiple exceptions, but perform the same operation for each one.

Accepted Answer

A)   multi-catch
B)   catch templates
C)   multi-try
D)   catchAll A

Question 8

A class must implement the Serializable interface in order for objects of the class to be serialized.

Accepted Answer

A) True 
 B)False

Question 9

This is a section of code that gracefully responds to exceptions when they are thrown.

Accepted Answer

A)   exception
B)   default exception handler
C)   exception handler
D)   thrown class

Question 10

Unchecked exceptions are those that inherit from the

Accepted Answer

A)   Error class or the RuntimeException class.
B)   Error class or the Exception class.
C)   Error class.
D)   Exception Class or the RuntimeException class.

Question 11

When an exception is thrown,

Accepted Answer

A)   it must always be handled by the method that throws it.
B)   it must be handled by the program or by the default exception handler.
C)   it may be ignored.
D)   the program terminates even if the exception is handled.

Question 12

To read data from a binary file, you create objects from the following classes:

Accepted Answer

A)   File and Scanner.
B)   File and PrintWriter.
C)   BinaryFileReader and BinaryDataReader.
D)   FileInputStream and DataInputStream .

Question 13

All of the exceptions that you will handle are instances of classes that extend this class.

Accepted Answer

A)   IOException
B)   Exception
C)   Error
D)   RunTimeException

Question 14

When catching multiple exceptions that are related to one another through inheritance, you should handle the more specialized exception classes before the more general exception classes.

Accepted Answer

A) True 
 B)False

Question 15

In order for an object to be serialized, the class must implement this interface.

Accepted Answer

A)   Serial
B)   Serializable
C)   ObjectOutputStream
D)   Writable

Question 16

If a method does not handle a possible checked exception, what must the method have?

Accepted Answer

A)   a try clause in its header
B)   a catch clause in its header
C)   a finally clause in its header
D)   a throws clause in its header

Question 17

If a class has fields that are objects of other classes, those classes must implement the Serializable interface in order to be serialized.

Accepted Answer

A) True 
 B)False

Question 18

The throws clause causes an exception to be thrown.

Accepted Answer

A) True 
 B)False

Question 19

The following catch clause
Catch (Exception e)

Accepted Answer

A)   can handle all throwable objects by using a polymorphic reference for the parameter.
B)   can handle all exceptions that are instances of the Exception class or one of its subclasses.
C)   can handle all exceptions that are instances of the Exception class, but not its subclasses.
D)   causes a compiler error. B

Question 20

When using the throw statement, if you do not pass a message to the exception object's constructor,

Accepted Answer

A)   the exception will have a null message.
B)   the exception will have a message containing the address of the exception.
C)   the exception will a default message describing the exception.
D)   a compiler error will occur.

Exam 10: Exceptions and Advanced File I/O

When an exception is thrown by code in the try block, the JVM begins searching the try statement for a catch clause that can handle it and passes control of the program to

Correct AnswerverifiedShow Answer

To write data to a binary file, you create objects from the following classes:

Correct AnswerverifiedShow Answer

In a try statement, the try clause must appear first, followed by all of the catch clauses, followed by the optional finally clause.

Correct AnswerverifiedShow Answer

What will the following code display? String input = "99#7"; Int number; Try { Number = Integer.parseInt(input) ; } Catch(NumberFormatException ex) { Number = 0; } Catch(RuntimeException ex) { Number = 1; } Catch(Exception ex) { Number = -1; } System.out.println(number) ;

Correct AnswerverifiedShow Answer

In Java, there are two categories of exceptions:

Correct AnswerverifiedShow Answer

When an object is serialized, it is converted into a series of bytes that contain the object's data.

Correct AnswerverifiedTrue

Beginning in Java 7, you can use ________ to reduce a lot of duplicated code in a try statement that needs to catch multiple exceptions, but perform the same operation for each one.

Correct AnswerverifiedA

A class must implement the Serializable interface in order for objects of the class to be serialized.

Correct AnswerverifiedShow Answer

This is a section of code that gracefully responds to exceptions when they are thrown.

Correct AnswerverifiedShow Answer

Unchecked exceptions are those that inherit from the

Correct AnswerverifiedShow Answer

When an exception is thrown,

Correct AnswerverifiedShow Answer

To read data from a binary file, you create objects from the following classes:

Correct AnswerverifiedShow Answer

All of the exceptions that you will handle are instances of classes that extend this class.

Correct AnswerverifiedShow Answer

When catching multiple exceptions that are related to one another through inheritance, you should handle the more specialized exception classes before the more general exception classes.

Correct AnswerverifiedShow Answer

In order for an object to be serialized, the class must implement this interface.

Correct AnswerverifiedShow Answer

If a method does not handle a possible checked exception, what must the method have?

Correct AnswerverifiedShow Answer

If a class has fields that are objects of other classes, those classes must implement the Serializable interface in order to be serialized.

Correct AnswerverifiedShow Answer

The throws clause causes an exception to be thrown.

Correct AnswerverifiedShow Answer

The following catch clause Catch (Exception e)

Correct AnswerverifiedB

When using the throw statement, if you do not pass a message to the exception object's constructor,

Correct AnswerverifiedShow Answer

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True

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A

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B

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