Exam 11: Multiple Classes and Inheritance

A(n) ____________________ can be used to write a stream of text to a file.

In a three-tier architecture, the classes in the ____ tier generally use data entered by users and data obtained from storage.

A variable that is declared with ____________________ access cannot be referenced by coding in any other class within the program.

The SelectedIndex property of a ComboBox object will contain the value ____ if a selection has been made.

The Visual Basic statement "Dim objStudent As Student" will create and instantiate an object.

A constructor procedure is identified by the keyword ____.

When a program becomes large and complex, the necessary process is often divided into _______.

Case 11-2 Inheritance can be a tricky concept to understand, so you are working with your classmates to come up with some ways to remember how it works. Given a class called Student (to represent students at a university), which of the following is likely to be an attribute contained in that class that can be inherited by the members of a subclass called OnCampusStudent?

The ____ statement can be used to instantiate an object from a class.

Generally, when using multiple classes within a program, variables in a class should not be available to code within other classes within the program.

The ____ prepares an object for use in the program.

The ____ tier is also called the data access tier in a three-tier architecture.

To determine if a selection was made in a combo box, the value of the ____________________ property should be tested.

The ____________________ property is used to specify the sequence of objects on a Windows form that will be selected when the Tab key is pressed.

When using inheritance, the subclass can use the procedures within the base class as well as its variables.

When a subclass is instantiated, only the subclass's constructor is executed.

Statements outside a base class and its subclasses can reference variables declared in the base class with Protected access.

Case 11-2 Inheritance can be a tricky concept to understand, so you are working with your classmates to come up with some ways to remember how it works. Which of the following is NOT an example of a valid base class-subclass relationship that you and your classmates can study as a model?

In a ComboBox object, the SelectedIndex property will contain a value of ____ if no selection has been made.

In a three-tier architecture, the business classes should not be concerned with the functionality of the user interface.