Exam 11: Multiple Classes and Inheritance

Both a base class and its subclass must have ____.

The MaskFull property will return a value of ____ if the mask area of a masked textbox is not completely filled.

____ is the concept of separating processing and hiding data within specific classes.

Validation of user input data should occur in the business tier of a three-tier architecture.

The ____________________ tier contains the classes that display information for the user and accept user input.

The business tier of a three-tier architecture contains the code required to read and write data from permanent storage.

The ____ property should be tested to ensure that a masked textbox contains characters for the entire mask area.

____________________ is the concept of separating processing and hiding data within specific classes.

What is the relationship into which a subclass must fit whenever inheritance is used? Provide at least three examples that illustrate this relationship.

The ____________________ procedure is used to close a StreamWriter file.

Concatenation is a major contributor to reliable and robust programs. _________________________

A subclass can use attributes from a(n) ____ class if those attributes were defined in the subclass.

Inheritance allows one class to gain ____ from another class.

In a three-tier architecture, the ____ tier contains the classes that display information and accept user input.

To use a three-tier structure for a program, you must divide the processing into ____.

The presentation tier of the three-tier structure consists of one or more forms and the objects placed on the forms.

A class that inherits attributes from another class is called a(n) ____.

____________________ allows one class to inherit attributes and procedures from another class.

The ____ tier is a tier within the three-tier structure into which programs are divided.

When a class is instantiated into an object, a special procedure in the instantiated class called a(n) ____________________ is executed.