Question 1

An uncaught exception ________.

Accepted Answer

A)  is a possible exception that never actually occurs during the execution of the program. 
B)  is an exception that occurs for which the matching catch clause is empty. 
C)  is an exception that occurs for which there are no matching catch clauses. 
D)  is another term for a thrown exception. 
A)  is a possible exception that never actually occurs during the execution of the program. 
B)  is an exception that occurs for which the matching catch clause is empty. 
C)  is an exception that occurs for which there are no matching catch clauses. 
D)  is another term for a thrown exception. C

Question 2

Exceptions can be thrown by ________.

Accepted Answer

A)  the Java Virtual Machine. 
B)  code in a try block. 
C)  calls from a try block to other methods. 
D)  All of the above. 
A)  the Java Virtual Machine. 
B)  code in a try block. 
C)  calls from a try block to other methods. 
D)  All of the above. D

Question 3

Which of the following statements about try blocks is true?

Accepted Answer

A)  The try block must be followed by at least one catch block. 
B)  The try block must be followed by a finally block. 
C)  The try block should contain statements that may process an exception. 
D)  The try block should contain statements that may throw an exception. 
A)  The try block must be followed by at least one catch block. 
B)  The try block must be followed by a finally block. 
C)  The try block should contain statements that may process an exception. 
D)  The try block should contain statements that may throw an exception. D

Question 4

Which of the following statements is true?

Accepted Answer

A)  The code in a finally block is executed only if an exception occurs. 
B)  The code in a finally block is executed only if an exception does not occur. 
C)  The code in a finally block is executed only if there are no catch blocks. 
D)  None of the above are true. 
A)  The code in a finally block is executed only if an exception occurs. 
B)  The code in a finally block is executed only if an exception does not occur. 
C)  The code in a finally block is executed only if there are no catch blocks. 
D)  None of the above are true.

Question 5

What is the difference between a try block and a try statement?

Accepted Answer

A)  There is no difference; the terms can be used interchangeably. 
B)  A try statement refers to the block of code following the keyword try, while the try block refers to the try keyword and the block of code following this keyword. 
C)  The try block refers to the keyword try followed by a block of code. The try block and its corresponding catch and/or finally clauses together form a try statement. 
D)  The try statement refers to the keyword try followed by a block of code. The try statement and its corresponding catch and/or finally clauses together form a try block. 
A)  There is no difference; the terms can be used interchangeably. 
B)  A try statement refers to the block of code following the keyword try, while the try block refers to the try keyword and the block of code following this keyword. 
C)  The try block refers to the keyword try followed by a block of code. The try block and its corresponding catch and/or finally clauses together form a try statement. 
D)  The try statement refers to the keyword try followed by a block of code. The try statement and its corresponding catch and/or finally clauses together form a try block.

Question 6

Chained exceptions are useful for finding out about ________.

Accepted Answer

A)  exceptions thrown using the chained keyword. 
B)  checked exceptions only. 
C)  an original exception that was caught before the current exception was thrown. 
D)  the current exception's chain of superclasses. 
A)  exceptions thrown using the chained keyword. 
B)  checked exceptions only. 
C)  an original exception that was caught before the current exception was thrown. 
D)  the current exception's chain of superclasses.

Question 7

Which of the following is not included in an exception's stack trace?

Accepted Answer

A)  A descriptive message for the exception. 
B)  The method-call stack at the time the exception occurred. 
C)  The name of the exception. 
D)  Instructions on handling the exception. 
A)  A descriptive message for the exception. 
B)  The method-call stack at the time the exception occurred. 
C)  The name of the exception. 
D)  Instructions on handling the exception.

Question 8

In the catch block below, what is e?
Catch (ArithmeticException e)
{
System.err.printf(e);
}

Accepted Answer

A)  The type of the exception being caught. 
B)  The name of catch block's exception parameter. 
C)  A finally block. 
D)  An exception handler. 
A)  The type of the exception being caught. 
B)  The name of catch block's exception parameter. 
C)  A finally block. 
D)  An exception handler.

Question 9

Which of the following statements about the try-with-resources statement is false?

Accepted Answer

A)  The try-with-resources statement simplifies writing code in which you obtain a resource, use it in a try block and release the resource in a corresponding finally block.. 
B)  You allocate the resource in the parentheses following the try keyword and use the resource in the try block; then the statement implicitly calls the resource's close method at the end of the try block. 
C)  You allocate the resource in the parentheses following the try keyword and use the resource in the try block; then you explicitly call the resource's close method at the end of the try block. 
D)  Each resource must be an object of a class that implements the AutoCloseable interface-such a class has a close method. 
A)  The try-with-resources statement simplifies writing code in which you obtain a resource, use it in a try block and release the resource in a corresponding finally block.. 
B)  You allocate the resource in the parentheses following the try keyword and use the resource in the try block; then the statement implicitly calls the resource's close method at the end of the try block. 
C)  You allocate the resource in the parentheses following the try keyword and use the resource in the try block; then you explicitly call the resource's close method at the end of the try block. 
D)  Each resource must be an object of a class that implements the AutoCloseable interface-such a class has a close method.

Question 10

In Java, after an exception is handled, control resumes . This is known as the model of exception handling.

Accepted Answer

A)  after the last catch block (or the finally block, if there is one), termination 
B)  after the last catch block (or the finally block, if there is one), resumption 
C)  just after the throw point, termination 
D)  just after the throw point, resumption 
A)  after the last catch block (or the finally block, if there is one), termination 
B)  after the last catch block (or the finally block, if there is one), resumption 
C)  just after the throw point, termination 
D)  just after the throw point, resumption

Question 11

When an unchecked exception occurs in a method but is not caught, ________.

Accepted Answer

A)  the method-call stack is "unwound." 
B)  the method terminates. 
C)  all local variables in that method go out of scope. 
D)  All of the above. 
A)  the method-call stack is "unwound." 
B)  the method terminates. 
C)  all local variables in that method go out of scope. 
D)  All of the above.

Question 12

If the catch-or-declare requirement for a checked exception is not satisfied ________.

Accepted Answer

A)  the compiler will issue an error message indicating that the exception must be caught. 
B)  the compiler will issue an error message indicating that the exception must be caught or declared. 
C)  a stack trace will be displayed indicating the exception that has occurred and where it occurred. 
D)  a stack trace will be displayed, along with a message indicating that the exception must be caught. 
A)  the compiler will issue an error message indicating that the exception must be caught. 
B)  the compiler will issue an error message indicating that the exception must be caught or declared. 
C)  a stack trace will be displayed indicating the exception that has occurred and where it occurred. 
D)  a stack trace will be displayed, along with a message indicating that the exception must be caught.

Question 13

To catch an exception, the code that might throw the exception must be enclosed in a ________.

Accepted Answer

A)  throws block. 
B)  catch block. 
C)  try block. 
D)  finally block. 
A)  throws block. 
B)  catch block. 
C)  try block. 
D)  finally block.

Question 14

Which of the following are types of assertions?

Accepted Answer

A)  Preconditions. 
B)  Postconditions. 
C)  Conditions in control statements. 
D)  (a) and (b). 
A)  Preconditions. 
B)  Postconditions. 
C)  Conditions in control statements. 
D)  (a) and (b).

Question 15

Which of the following statements is false?

Accepted Answer

A)  A finally block is placed after the last catch block. 
B)  A finally block typically releases resources acquired in the corresponding try block. 
C)  The finally block and try block can appear in any order. 
D)  A finally block is optional. 
A)  A finally block is placed after the last catch block. 
B)  A finally block typically releases resources acquired in the corresponding try block. 
C)  The finally block and try block can appear in any order. 
D)  A finally block is optional.

Question 16

After a finally block has finished executing (and there are no exceptions to be handled), ________.

Accepted Answer

A)  control proceeds to the first statement after the finally block. 
B)  control returns to the throw point. 
C)  the application exits. 
D)  control proceeds to the first statement after the last catch block. 
A)  control proceeds to the first statement after the finally block. 
B)  control returns to the throw point. 
C)  the application exits. 
D)  control proceeds to the first statement after the last catch block.

Question 17

All exception classes inherit, either directly or indirectly, from ________.

Accepted Answer

A)  class Error. 
B)  class RuntimeException. 
C)  class Throwable. 
D)  None of the above. 
A)  class Error. 
B)  class RuntimeException. 
C)  class Throwable. 
D)  None of the above.

Question 18

Which of the following statements is true?

Accepted Answer

A)  Using existing exceptions makes the program less robust. 
B)  Always create your own exception classes. 
C)  Like any other class, an exception class can contain fields and methods. 
D)  The new exception class should extend RuntimeException if the program should be required to handle the exception. 
A)  Using existing exceptions makes the program less robust. 
B)  Always create your own exception classes. 
C)  Like any other class, an exception class can contain fields and methods. 
D)  The new exception class should extend RuntimeException if the program should be required to handle the exception.

Question 19

The throws clause of a method:

Accepted Answer

A)  specifies the exceptions a method catches. 
B)  specifies the exceptions thrown by the calling method. 
C)  specifies the exceptions a method throws. 
D)  specifies the exceptions a method throws and catches. 
A)  specifies the exceptions a method catches. 
B)  specifies the exceptions thrown by the calling method. 
C)  specifies the exceptions a method throws. 
D)  specifies the exceptions a method throws and catches.

Question 20

Which of the following exceptions is a checked exception?

Accepted Answer

A)  ArithmeticException. 
B)  IOException. 
C)  RuntimeException. 
D)  InputMismatchException. 
A)  ArithmeticException. 
B)  IOException. 
C)  RuntimeException. 
D)  InputMismatchException.

Exam 11: Exception Handling

An uncaught exception ________.

Exceptions can be thrown by ________.

Which of the following statements about try blocks is true?

Which of the following statements is true?

What is the difference between a try block and a try statement?

Chained exceptions are useful for finding out about ________.

Which of the following is not included in an exception's stack trace?

In the catch block below, what is e? Catch (ArithmeticException e) { System.err.printf(e); }

Which of the following statements about the try-with-resources statement is false?

In Java, after an exception is handled, control resumes . This is known as the model of exception handling.

When an unchecked exception occurs in a method but is not caught, ________.

If the catch-or-declare requirement for a checked exception is not satisfied ________.

To catch an exception, the code that might throw the exception must be enclosed in a ________.

Which of the following are types of assertions?

Which of the following statements is false?

After a finally block has finished executing (and there are no exceptions to be handled), ________.

All exception classes inherit, either directly or indirectly, from ________.

Which of the following statements is true?

The throws clause of a method:

Which of the following exceptions is a checked exception?

Introduction to Computers and Java

Introduction to Java Applications

Control Statements

Control Statements

Methods

Arrays and Arraylists

Introduction to Classes and Objects

Classes and Objects: a Deeper Look

Object Oriented Programming: Inheritance

Object-Oriented Programming: Polymorphism

Gui Components

Graphics and Java 2D

Fundamentals of Characters and Strings

Files, Streams and Object Serialization

Generic Collections

Lambdas

Recursion

Searching, Sorting and Big O

Generic Classes and Methods

Custom Generic Data Structures

GUI

Concurrency

Accessing Databases With JDBC

JavaFX

Filters