Exam 5: Loops, Files, and Random Numbers

The ____________ displays a standard Windows Open dialog box.

The Next method in the Random class generates a floating-point number.

A ____________ contains data that cannot be viewed by a text editor (such as NotePad).

When reading numeric data from a text file, the Parse and TryParse methods can be used to convert the items from string values to numeric data types.

Incrementing and decrementing are so commonly done in programs that C# provides the ++ and -- unary operators for just these purposes.

The ____________ is useful in applications that must open an existing file because it allows the user to browse the system and select the file.

When working with files, you can write a try-catch statement to handle unexpected errors.

A while loop will always iterate at least once, even if the Boolean expression is initially false.

Counter variables are commonly used to hold Boolean values that control the number of times a loop iterates.

The SaveFileDialog control displays Save As in the dialog window's title bar.

You can change the default text displayed in the Open dialog box's title bar by changing the control's ____________.

Many systems, including MS-Windows, support the use of ____________, which are short sequences of characters that appear at the end of filenames and are preceded by a period.

If you are writing a while loop that has only one statement in its body, you do not have enclose the statement inside curly braces.

To append data to an existing file, you open it with the ____________ method.

The while loop gets its name from the way it works: While a Boolean expression is true, do some task.

The values generated by the Random class are not really random-instead, they are determined by a formula that only makes the number appear as if they were random.

When you create an OpenFileDialog control, its Filename property is initially set to the directory where the program's executable file is located.

When the WriteLine method writes data to a file, it writes a null character immediately following the data.

You can use the StreamReader class's ____________ to determine if the file's read position is at the end of the file.

ListBox controls have an ____________ method that erases all the items in the Items property.