Unit 11 MIST 352 quiz

any number of

You can place ______________________ statement(s) within a try block.

throws an Exception of an acceptable type

A catch block executes when its try block ______________________.

exception

Any error condition or unexpected behavior in an executing program is known as an ______________________.

1

Consider the following catch blocks. The variable b has been initialized to 0. If a DivideByZeroException occurs in a try block just before this catch block, what is the value of b when this code completes? catch(DivideByZeroException e) {<br ++b; } catch(Exception e) { ++b; }

2

Consider the following catch blocks. The variable c has been initialized to 0. If an IndexOutOfRangeException occurs in a try block just before this catch block, what is the value of c when this code completes? catch(IndexOutOfRangeException e) { ++c; } catch(Exception e) { ++c; } finally { ++c; }

99

Consider the following try block. If x is 15, what is the value of a when this code completes? try { a = 99; if(x > 10) throw(new Exception()); a = 0; ++a; }

both of these: generated automatically by C# and created by a program

Exception objects can be ______________________.

any number, including zero or one

How many catch blocks might follow a try block within the same method?

you can still manage error situations

If you do not use object-oriented techniques, ______________________.

the Exception catch block executes

If your program throws an IndexOutOfRangeException, and the only available catch block catches an Exception, ______________________.

throws

In object-oriented terminology, a method that detects an error condition ______________________ an exception.

try

In object-oriented terminology, you ______________________ a procedure that might not complete correctly.

Exception, SystemException, and ApplicationException

Most exceptions you will use derive from three classes: ______________________.

can handle it

When a program creates an Exception object, you ______________________.

exception

When you create an Exception subclass of your own, you should extend the ______________________ class.

throw exceptions but not handle them

When you design your own classes that might cause exceptions, and other classes will use your classes as clients, you should usually create your methods to ______________________.

try

When you write a block of code in which something can go wrong, and you want to throw an exception if it does, you place the code in a ______________________ block.

catch(Exception e) {}

Which of the following catch blocks will catch any Exception object?

You attempt to execute a C# program, but the C# compiler has not been installed.

Which of the following is not treated as a C# Exception?

two of these

Which of the following is valid within a catch block with the header catch(Exception error)?