Chapter 11
30 questions
10 fill in the blank
10 true/false
10 multiple choice
Fill in the Blank Questions
1. An exception __________ is code that executes when an exception is thrown.
[handler]
2. Statements in a __________ block are always executed regardless of whether an exception is thrown
or not.
[finally]
3. The current method that is executing is always represented by the __________ block on the method
call stack.
[top]
4. The compiler analyzes __________ exceptions to determine if the containing method handles or
declares the exception.
[checked]
5. A __________ dialog box does not allow the user to access another window until it is closed.
[modal]
6. The code that may generate an exception is contained in a __________ block.
[try]
7. The code that is executed when an exception occurs is contained in a __________ block.
[catch]
8. If a method encounters an error or an exceptional condition, it will __________ an exception.
[throw]
9. Division by zero causes a(n) __________ to be thrown.
[ArithmeticException]
10. Unchecked exceptions belong to subclasses of __________.
[RuntimeExceoption]
True/False Questions
1. When an exception is thrown, control is transferred to the appropriate catch block and does not resume
in the try block.
TRUE
FALSE
[TRUE]
2.
A finally block is always required when using try and catch blocks.
TRUE
FALSE
[FALSE]
3.
Only one catch block can be associated with a given try block.
TRUE
FALSE
[FALSE]
4. Dynamic scoping occurs when the call stack is used to search backwards through method calls to find
a catch block.
TRUE
FALSE
[TRUE]
5.
A program terminates when an exception is thrown and there is not a corresponding catch block.
TRUE
FALSE
[TRUE]
6.
A finally block is executed only if the catch block is executed.
TRUE
FALSE
[FALSE]
7.
An exception is thrown when an error or abnormal condition is encountered.
TRUE
FALSE
[TRUE]
8.
The try block includes statements that are executed when an exception occurs.
TRUE
FALSE
[FALSE]
9.
The JOptionPane class contains methods for creating and displaying basic dialog boxes.
TRUE
FALSE
[TRUE]
10. The integer division operator will throw a NumberFormatException when the denominator is zero.
TRUE
FALSE
[FALSE]
Multiple-Choice Questions
1. What method prints a list of all the methods that were called leading up to the method that threw the
exception?
A. RunTimeException()
B. printStackTrace()
C. catch()
D. Exception()
[B]
2.
Which of the following is a checked exception?
A. NullPointerException
B. IndexOutOfBoundsException
C. NumberFormatException
D. IOException
[D]
3.
[B]
What is the default icon displayed for a JOptionPane?
A. PLAIN_MESSAGE
B. INFORMATIONAL_MESSAGE
C. WARNING_MESSAGE
D. ERROR_MESSAGE
4.
What is printed from the following code segment?
int x = 5;
try {
if (x > 10)
throw new Exception(x + “ is too large”);
System.out.println(“Exiting try block”);
} catch (Exception e) {
System.out.println(“Error: “ + e.getMessage());
}
A.
B.
C.
D.
5 is too large
Exiting try block
Error: 5 is too large
5 is too large Exiting try block
[B]
5.
What is printed from the following code segment?
int x = 35;
try {
if (x > 10)
throw new Exception(x + “ is too large”);
System.out.println(“Exiting try block”);
} catch (Exception e) {
System.out.println(“Error: “ + e.getMessage());
}
A.
B.
C.
D.
35 is too large
Exiting try block
Error: 35 is too large
35 is too large Exiting try block
[C]
6.
What type of exception is thrown from the following code segment?
String s = “illerom”;
s.substring(10);
A.
B.
C.
D.
NumberFormatException
ArithmeticException
NullPointerException
StringIndexOutOfBoundsException
[D]
7.
What type of exception is thrown from the following code segment?
Integer.parseInt(“546.23”);
A.
B.
C.
D.
[A]
NumberFormatException
ArithmeticException
NullPointerException
StringIndexOutOfBoundsException
8.
What type of block handles exception?
A. try
B. catch
C. throw
D. finally
[B]
9.
What type of block throws exceptions?
A. try
B. catch
C. throw
D. finally
[A]
10. What type of exception is raised when division by zero is attempted?
A. ArithmeticException
B. NumberFormatException
C. NullPointException
D. IndexOutOfBoundsException
[A]