Question 1

Which of the following are types of assertions?

Accepted Answer

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

Question 2

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. C

Question 3

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. C

Question 4

When an exception occurs it is said to have been:

Accepted Answer

A) caught. 
B) thrown. 
C) declared. 
D) handled. 
A) caught. 
B) thrown. 
C) declared. 
D) handled.

Question 5

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 6

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.

Question 7

In the catch block below,what is arithmeticException? catch ( ArithmeticException arithmeticException )
{
System.err.printf( arithmeticException );
} // end catch

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 8

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 9

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.

Question 10

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 11

Which of the following statements is true?

Accepted Answer

A) The throw statement is used to throw an exception. 
B) The throw statement is used to specify that a method will throw an exception. 
C) The throw statement is used to access an exception parameter. 
D) All of the above. 
A) The throw statement is used to throw an exception. 
B) The throw statement is used to specify that a method will throw an exception. 
C) The throw statement is used to access an exception parameter. 
D) All of the above.

Question 12

Which of the following statements is false?

Accepted Answer

A) All exceptions must derive from the class Throwable. 
B) The class Throwable provides the method getStackTrace that outputs the stack trace to the standard error stream. 
C) The class Throwable provides the method getMessage that returns the descriptive string stored in an exception. 
D) The string returned from class Throwable's getMessage method contains the name of the exception's class. 
A) All exceptions must derive from the class Throwable. 
B) The class Throwable provides the method getStackTrace that outputs the stack trace to the standard error stream. 
C) The class Throwable provides the method getMessage that returns the descriptive string stored in an exception. 
D) The string returned from class Throwable's getMessage method contains the name of the exception's class.

Question 13

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 14

Java SE 7's multi-catch enables you to catch multiple exception types in a single catch handler and perform the same task for each type of exception.The syntax for a multi-catch is:

Accepted Answer

Question 15

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 16

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 17

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 18

Which of the following statements is false?

Accepted Answer

A) Exception handling enables programmers to write robust and fault-tolerant programs. 
B) Exception handling can catch but not resolve exceptions. 
C) Exception handling can resolve exceptions. 
D) All of the above are true. 
A) Exception handling enables programmers to write robust and fault-tolerant programs. 
B) Exception handling can catch but not resolve exceptions. 
C) Exception handling can resolve exceptions. 
D) All of the above are true.

Question 19

Which of the following is true?

Accepted Answer

A) A precondition must be true when a method is invoked. 
B) A postcondition must be true when a method successfully returns to its caller. 
C) Both of the above. 
D) Neither of the above. 
A) A precondition must be true when a method is invoked. 
B) A postcondition must be true when a method successfully returns to its caller. 
C) Both of the above. 
D) Neither of the above.

Question 20

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.

Exam 11: Exception Handling

Which of the following are types of assertions?

Which of the following statements is false?

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

When an exception occurs it is said to have been:

Chained exceptions are useful for finding out about:

Which of the following statements about try blocks is true?

In the catch block below,what is arithmeticException? catch ( ArithmeticException arithmeticException ) { System.err.printf( arithmeticException ); } // end catch

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

Which of the following exceptions is a checked exception?

The throws clause of a method:

Which of the following statements is true?

Which of the following statements is false?

When an unchecked exception occurs in a method but is not caught:

Java SE 7's multi-catch enables you to catch multiple exception types in a single catch handler and perform the same task for each type of exception.The syntax for a multi-catch is:

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

All exception classes inherit,either directly or indirectly,from:

Which of the following statements is true?

Which of the following statements is false?

Which of the following is true?

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

Introduction to Computers and Java

Introduction to Java Applications

Introduction to Classes and Objects

Control Statements: Part 1

Control Statements: Part 2

Methods: a Deeper Look

Arrays and Arraylists

Classes and Objects: a Deeper Look

Object Oriented Programming: Inheritance

Object-Oriented Programming: Polymorphism

Atm Case Study,part 1: Object-Oriented Design With the Uml

Atm Case Study,part 2: Implementing an Object-Oriented Design

Gui Components: Part 1

Graphics and Java 2d

Strings

Files,streams and Object Serialization

Recursion

Searching, Sorting and Big O

Generic Collections

Generic Classes and Methods

Custom Generic Data Structures

Applets and Java Web Start

Multimedia: Applets and Applications

Gui, Part 2

Multithreading

Networking

Accessing Databases With Jdbc

Java Server Faces Web Applications

Ajax-Enabled Jsf Web Applications

Web Services

Filters