Question 1

Which of the following will cause the first exception to occur in the code in the accompanying figure?

Accepted Answer

A)  If the divisor is zero 
B)  If the dividend is zero 
C)  If the quotient is zero 
D)  This code will not compile, so an exception cannot be triggered. 
A)  If the divisor is zero 
B)  If the dividend is zero 
C)  If the quotient is zero 
D)  This code will not compile, so an exception cannot be triggered.

Question 2

The JList GUI component generates events that call the actionStateChanged method.

Accepted Answer

A) True 
 B)False

Question 3

The class Throwable is derived from the class Exception.

Accepted Answer

A) True 
 B)False

Question 4

The order in which catch blocks are placed in a program has no impact on which catch block is executed.

Accepted Answer

A) True 
 B)False

Question 5

An unchecked exception is any exception that causes a program to terminate.

Accepted Answer

A) True 
 B)False

Question 6

For interfaces such as WindowListener that contain more than one method, Java provides the class WindowAdapter.

Accepted Answer

A) True 
 B)False

Question 7

If you want to provide your own code to terminate the program when the window is closed, or if you want the program to take a different action when the window closes, then you use the interface ____.

Accepted Answer

A)  WindowListener 
B)  ActionListener 
C)  CloseListener 
D)  MouseListener 
A)  WindowListener 
B)  ActionListener 
C)  CloseListener 
D)  MouseListener

Question 8

The try block contains statements that should be executed regardless of whether or not an exception occurs.

Accepted Answer

A) True 
 B)False

Question 9

What can a method do with a checked exception?

Accepted Answer

A)  Check the exception or ignore it. 
B)  Return the exception to the sender or handle it in a catch block. 
C)  Throw the exception to the method that called this method, or handle the exception in a catch block. 
D)  Handle the exception in the try block or handle the exception in the catch block. 
A)  Check the exception or ignore it. 
B)  Return the exception to the sender or handle it in a catch block. 
C)  Throw the exception to the method that called this method, or handle the exception in a catch block. 
D)  Handle the exception in the try block or handle the exception in the catch block.

Question 10

If there is a finally block after the last catch block, the finally block always executes.

Accepted Answer

A) True 
 B)False

Question 11

When an exception occurs in a method, you can use the method printStackTrace to determine the order in which the methods were called and where the exception was handled.

Accepted Answer

A) True 
 B)False

Question 12

Which class of exceptions is NOT checked?

Accepted Answer

A)  FileNotFoundException 
B)  ArithmeticException 
C)  RuntimeException 
D)  All exceptions are checked. 
A)  FileNotFoundException 
B)  ArithmeticException 
C)  RuntimeException 
D)  All exceptions are checked.

Question 13

When an exception occurs, an object of a particular exception class is created.

Accepted Answer

A) True 
 B)False

Question 14

Which method throws the second exception in the code in the accompanying figure?

Accepted Answer

A)  nextInt 
B)  toString 
C)  println 
D)  nextLine 
A)  nextInt 
B)  toString 
C)  println 
D)  nextLine

Question 15

How many finally blocks can there be in a try/catch structure?

Accepted Answer

A)  There must be one finally block. 
B)  There can be one finally block following each catch block. 
C)  There can be zero or one finally blocks following the last catch block. 
D)  There is no limit to the number of finally blocks following the last catch block. 
A)  There must be one finally block. 
B)  There can be one finally block following each catch block. 
C)  There can be zero or one finally blocks following the last catch block. 
D)  There is no limit to the number of finally blocks following the last catch block.

Question 16

To handle window events, if the class containing the application program does not extend the definition of another class, you can make that class extend the definition of the class ____.

Accepted Answer

A)  MouseAdapter 
B)  Adapter 
C)  WindowAdapter 
D)  WindowListener 
A)  MouseAdapter 
B)  Adapter 
C)  WindowAdapter 
D)  WindowListener

Question 17

Making a reference to an object that has not yet been instantiated would throw an exception from the NullPointerException class.

Accepted Answer

A) True 
 B)False

Question 18

The class Object is derived from the class Throwable.

Accepted Answer

A) True 
 B)False

Question 19

The MouseListener interface defines ____ methods.

Accepted Answer

A)  two 
B)  three 
C)  four 
D)  five 
A)  two 
B)  three 
C)  four 
D)  five

Question 20

The methods getMessage and printStackTrace are private methods of the class Throwable.

Accepted Answer

A) True 
 B)False

Which of the following will cause the first exception to occur in the code in the accompanying figure?

The JList GUI component generates events that call the actionStateChanged method.

The class Throwable is derived from the class Exception.

The order in which catch blocks are placed in a program has no impact on which catch block is executed.

An unchecked exception is any exception that causes a program to terminate.

For interfaces such as WindowListener that contain more than one method, Java provides the class WindowAdapter.

If you want to provide your own code to terminate the program when the window is closed, or if you want the program to take a different action when the window closes, then you use the interface ____.

The try block contains statements that should be executed regardless of whether or not an exception occurs.

What can a method do with a checked exception?

If there is a finally block after the last catch block, the finally block always executes.

When an exception occurs in a method, you can use the method printStackTrace to determine the order in which the methods were called and where the exception was handled.

Which class of exceptions is NOT checked?

When an exception occurs, an object of a particular exception class is created.

Which method throws the second exception in the code in the accompanying figure?

How many finally blocks can there be in a try/catch structure?

To handle window events, if the class containing the application program does not extend the definition of another class, you can make that class extend the definition of the class ____.

Making a reference to an object that has not yet been instantiated would throw an exception from the NullPointerException class.

The class Object is derived from the class Throwable.

The MouseListener interface defines ____ methods.

The methods getMessage and printStackTrace are private methods of the class Throwable.

An Overview of Computers and Programming Languages

Basic Elements of Java

Introduction to Objects and Inputoutput

Control Structures I: Selection

Control Structures II: Repetition

Graphical User Interface Gui and Object-Oriented Design OOD

User-Defined Methods

User-Defined Classes and Adts

Arrays

Inheritance and Polymorphism

Advanced Guis and Graphics

Recursion

Searching and Sorting

Filters

Exam 11: Handling Exceptions and Events

Which of the following will cause the first exception to occur in the code in the accompanying figure?

The JList GUI component generates events that call the actionStateChanged method.

The class Throwable is derived from the class Exception.

The order in which catch blocks are placed in a program has no impact on which catch block is executed.

An unchecked exception is any exception that causes a program to terminate.

For interfaces such as WindowListener that contain more than one method, Java provides the class WindowAdapter.

If you want to provide your own code to terminate the program when the window is closed, or if you want the program to take a different action when the window closes, then you use the interface ____.

The try block contains statements that should be executed regardless of whether or not an exception occurs.

What can a method do with a checked exception?

If there is a finally block after the last catch block, the finally block always executes.

When an exception occurs in a method, you can use the method printStackTrace to determine the order in which the methods were called and where the exception was handled.

Which class of exceptions is NOT checked?

When an exception occurs, an object of a particular exception class is created.

Which method throws the second exception in the code in the accompanying figure?

How many finally blocks can there be in a try/catch structure?

To handle window events, if the class containing the application program does not extend the definition of another class, you can make that class extend the definition of the class ____.

Making a reference to an object that has not yet been instantiated would throw an exception from the NullPointerException class.

The class Object is derived from the class Throwable.

The MouseListener interface defines ____ methods.

The methods getMessage and printStackTrace are private methods of the class Throwable.

An Overview of Computers and Programming Languages

Basic Elements of Java

Introduction to Objects and Inputoutput

Control Structures I: Selection

Control Structures II: Repetition

Graphical User Interface Gui and Object-Oriented Design OOD

User-Defined Methods

User-Defined Classes and Adts

Arrays

Inheritance and Polymorphism

Advanced Guis and Graphics

Recursion

Searching and Sorting

Filters