Deck 11: Structures and Sequential Files

Question 1

In Visual Basic, you use a ____ object to read data from a sequential access file.

A) StreamReaderWriter
B) StreamWriter
C) StreamRandom
D) StreamReader

Answer 1

D

Question 2

The "____" filename extension typically is used when naming sequential access files.

A) ini
B) txt
C) wri
D) rtf

Answer 2

B

Question 3

The Structure statement ends with the ____ keyword(s).

A) Stop Structure
B) Exit Structure
C) End
D) End Structure

Answer 3

D

Question 4

Sending data to a file is referred to as ____ the file.

A) interfacing with
B) burning
C) reading
D) writing to

Question 5

A class-level structure variable is declared using the keyword ____.

A) Dim
B) Private
C) Public
D) Structure

Question 6

In a Structure statement, each member variable's definition contains the keyword ____ followed by the variable's name.

A) Public
B) Private
C) Dim
D) As

Question 7

You can use a structure to declare a variable.

Question 8

Getting data from a file is referred to as ____ the file.

A) interfacing with
B) burning
C) reading
D) writing to

Question 9

Programmers use ____ to group related items into one unit.

A) members
B) constants
C) scalar variables
D) structures

Question 10

A sequential access file is often referred to as a ____ file.

A) text
B) random
C) binary
D) byte

Question 11

The ____ method can be used to avoid the run time error that occurs when the computer cannot locate an input file..

A) Check
B) File
C) Exists
D) Ready

Question 12

You can write data to a sequential access file using the ____ method.

A) Save
B) Write
C) Append
D) Open

Question 13

In most cases, an application will not need to read each line of text contained in a sequential access file.

Question 14

A form's ____ event occurs when a form is about to be closed.

A) FormClosing
B) Exiting
C) FormExit
D) FormEnding

Question 15

The PadLeft and PadRight methods pad a string with a character until the string is a specified length.

Question 16

You can create your own data types in Visual Basic using the ____ statement.

A) Call
B) Structure
C) Data
D) Assignment

Question 17

The only time that a form's FormClosing event occurs is when the user clicks the Close button on the form's title bar.

Question 18

The members included in a structure can be variables, constants, or procedures.

Question 19

The Exists method returns a(n) ____ value.

A) string
B) integer
C) Boolean
D) character

Question 20

You refer to a member variable in an array element using the syntax ____.

A) arrayName.memberVariableName(subscript)
B) arrayName(subscript).memberVariableName
C) arrayName(memberVariableName)(subscript)
D) arrayName(subscript).variables(memberVariableName)

Question 21

A form's FormClosing event can occur when the computer processes the ____ statement in the form's code.

A) My.Computer.Close()
B) MyComputer.Close()
C) Me.Close()
D) My.Close()

Question 22

A(n) ____ is a single item of information about a person, place, or thing.

A) table
B) entity
C) field
D) attribute

Question 23

Match each item with a statement below.
a.input file
f.dot member access operator
b.Private
g.record
c.AppendText
h.output file
d.Dim
i.field
e.structure
Used to declare a class-level structure variable.

Question 24

Match each item with a statement below.
a.input file
f.dot member access operator
b.Private
g.record
c.AppendText
h.output file
d.Dim
i.field
e.structure
A file to which information is written.

Question 25

You should use the ____________________ method to close an output sequential access file as soon as you are finished using it.

Question 26

Match each item with a statement below.
a.input file
f.dot member access operator
b.Private
g.record
c.AppendText
h.output file
d.Dim
i.field
e.structure
Used to create a procedure-level structure variable.

Question 27

You can prevent the computer from closing a form by setting the Cancel property of the FormClosing procedure's ____ parameter to True.

A) form
B) e
C) load
D) start

Question 28

Match each item with a statement below.
a.input file
f.dot member access operator
b.Private
g.record
c.AppendText
h.output file
d.Dim
i.field
e.structure
Contains all of the necessary data about a specific person, place, or thing

Question 29

Match each item with a statement below.
a.input file
f.dot member access operator
b.Private
g.record
c.AppendText
h.output file
d.Dim
i.field
e.structure
New data is written after existing data in the file

Question 30

Match each item with a statement below.
a.input file
f.dot member access operator
b.Private
g.record
c.AppendText
h.output file
d.Dim
i.field
e.structure
A user-defined data type.

Question 31

Match each item with a statement below.
a.input file
f.dot member access operator
b.Private
g.record
c.AppendText
h.output file
d.Dim
i.field
e.structure
A file that is read by a computer.

Question 32

Which of the following statements removes the first item from the booksList box?

A) booksListBox.Remove(0)
B) booksListBox.RemoveAt(1)
C) booksListBox.Items.RemoveAt(0)
D) booksListBox.Items.RemoveAt(1)

Question 33

You can use the ____ method to write a specific number of space characters in a string.

A) Strings.Space
B) Strings.Write
C) Strings.Character
D) Strings.Add

Question 34

Match each item with a statement below.
a.input file
f.dot member access operator
b.Private
g.record
c.AppendText
h.output file
d.Dim
i.field
e.structure
A single item of information about a person, place, or thing

Question 35

A(n) ____ is a group of related fields that contain all of the necessary data about a specific person, place, or thing.

A) record
B) table
C) column
D) entity

Question 36

Match each item with a statement below.
a.input file
f.dot member access operator
b.Private
g.record
c.AppendText
h.output file
d.Dim
i.field
e.structure
Used to separate the structure variable's name from the member variable's name.

Question 37

Variables included in a structure are referred to as ____________________ variables.

Question 38

When using the ____________________ method, the next character written to a file will appear on the line immediately below the string.

Question 39

Variables declared using a structure are often referred to as ____________________ variables.

Question 40

Data types created by the Structure statement are referred to as ____________________ data types.

Question 41

Under what situations does a form's FormClosing event occur?

Question 42

When using the Exists method for determining whether a file exists, explain what happens if you do not include a folder path.

Question 43

Write a statement to declare a class-level variable named salaried of a structure named Employee.

Question 44

What is the Split function used for?

Question 45

Suppose a structure variable named manager contains a salary member variable. Write a statement that multiplies the contents of the salary member variable by 1.05, and then assigns the result to the member variable.

Question 46

Explain what a delimiter character is used for.

Question 47

Explain the difference between a field and a record and provide an example of each.

Question 48

Explain what it means to access data sequentially from a sequential access file.

Question 49

Write a statement to declare a procedure-level variable named manager of a structure named Employee.

Question 50

Describe the advantage of passing a structure variable to a procedure.