Question 271
You execute the following code.
How many times will the word Hello be printed?
Question 272
This question requires that you evaluate the underlined text to determine if it is correct.
Converting an object to a more general type is called upcasting.
Select the correct answer if the underlined text does not make the statement correct. Select "No change is needed'' if the underlined text makes the statement correct.
Question 273
You are creating an application that presents the user with a Windows Form. You need to configure the application to display a message box to confirm that the user wants to close the form.
Which event should you handle?
Question 274
Suppose that you defined a class Scenario that defines functionality for running customized pivot transform on large data sets.
You do not want the functionality of this class to be inherited into derived classes.
What keyword should you use to define the Scenario class?
Question 275
This question requires that you evaluate the underlined text to determine if it is correct.
To improve performance, a SQL SELECT statement should use indexes.
Select the correct answer if the underlined text does not make the statement correct. Select "No change is needed'' if the underlined text makes the statement correct.