Multiple Choice
Identify the
choice that best completes the statement or answers the question.
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1.
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To access the 9th element in an array the ____ index is used.
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2.
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The ____ keyword is used to declare an array.
a. | DimArray | c. | InitArray | b. | Array | d. | Dim |
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3.
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Select the correct syntax to declare an array named intReservations with 10
Integer elements.
a. | Dim intReservations(9) as Integer | c. | Dim intReservations[9] as
Integer | b. | Dim intReservations(10) as Integer | d. | Dim intReservations[10] as
Integer |
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4.
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The elements in a string type array will be initialized to ____.
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5.
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The elements in an integer type array will be initialized to ____.
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6.
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If an element is referenced using an index that is not in the bounds of the
array, a(n) ____ error occurs.
a. | IndexOutOfBoundsException | c. | IndexInvalidException | b. | IndexOutOfRangeException | d. | InvalidIndexException |
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7.
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The ____ keyword is used to change the upper bound of an array.
a. | ReBound | c. | ReDim | b. | ReSize | d. | ReInit |
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8.
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As shown in the accompanying figure, the ____ keyword will save existing data
when resizing an array to a larger size.
a. | Preserve | c. | As | b. | Save | d. | ReDim |
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9.
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The ____ loop can be used to process each element of an array.
a. | For Element | c. | For Each | b. | For Array | d. | For Value |
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10.
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To apply the sort procedure to an array called intAges, use the syntax
____.
a. | Sort(intAges) | c. | ArraySort(intAges) | b. | Sort.Array(.intAges) | d. | Array.Sort(intAges) |
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11.
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The array ____ procedure is used to organize elements in an array according to
their values.
a. | Organize | c. | Arrange | b. | Order | d. | Sort |
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12.
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The BinarySearch procedure returns ____ if the desired value is found in the
array.
a. | the element’s value | c. | 1 | b. | the matching index
value | d. | -1 |
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13.
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To store the values contained in a table, you would use a ____ array.
a. | parallel | c. | two-dimensional | b. | grid | d. | three-dimensional |
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14.
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The ____ file extension indicates a text file.
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15.
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In Visual Basic, an array can have up to ____ dimensions.
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16.
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Text data can be stored in a(n) ____ file.
a. | sequential | c. | archival | b. | dynamic | d. | encoded |
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17.
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The ____ object is used to access information in a text file.
a. | Reader | c. | Streamer | b. | TextReader | d. | StreamReader |
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18.
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The ____ method of a StreamReader object should be used to read the next
character in a file without changing position in the file.
a. | CheckNext | c. | PeekNext | b. | Peek | d. | TestNext |
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19.
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The ____ object is used to store data into a text file.
a. | TextSave | c. | Streamer | b. | StreamSave | d. | StreamWriter |
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20.
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Every application begins executing a project by displaying the object designated
as
the ____ object.
a. | Initial | c. | Primary | b. | Startup | d. | Main |
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21.
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A ____ form retains the input focus while open so that the user cannot switch
between Form objects until the first form is closed.
a. | modal | c. | focused | b. | modeless | d. | forced |
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22.
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The ____ procedure takes a form out of view.
a. | Remove | c. | Hide | b. | Minimize | d. | Vanish |
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23.
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Command lines placed after the ____ method call are not executed until the
second Form object is closed.
a. | ShowModal | c. | OpenModal | b. | ShowDialog | d. | ShowModeless |
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24.
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A(n) ____ form allows users to switch to other forms within the application
while its open.
a. | modal | c. | unfocused | b. | modeless | d. | forced |
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25.
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In applications that include multiple forms, it is best to declare every
variable as a ____ variable unless the variable is used in multiple Form objects.
a. | Private | c. | Locked | b. | Hidden | d. | Unique |
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True/False
Indicate whether the
statement is true or false.
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26.
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An array variable can store more than one value.
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27.
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An array element is accessed by using the array name and the element’s
index or subscript.
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28.
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An array variable can store a maximum of 5 values at a time.
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29.
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An element is an individual item in an array.
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30.
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Array indexes are numbered in a zero-relative manner.
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31.
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Arrays cannot be initialized by assigning values to each element.
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32.
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The term parallel array has the same meaning as the term two-dimensional
array.
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33.
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When declaring an implicitly sized array, declaring an upper-bound index will
cause an error to occur.
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34.
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Parallel arrays store related data in two or more arrays.
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35.
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The number of values in an implicitly sized array is determined at
execution.
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36.
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An array with an upper-bound index declared is not implicitly sized.
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37.
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When an array is initialized, no default values are automatically assigned to
the elements.
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38.
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An array can hold only integer or string type values.
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39.
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When an element is added to an array using an index that exceeds the upper bound
of the array, the array automatically resizes itself to contain the new data.
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40.
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An array subscript cannot be less than 0.
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41.
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When using the Preserve keyword to redimension an array to a smaller size, a
separate array of elements will be made to store the values that were truncated from the end of the
array.
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42.
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A dynamic array’s values can change, but its size cannot change at run
time.
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43.
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The ReDim statement can be used to change the size of an array.
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44.
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All Visual Basic arrays are considered dynamic arrays.
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45.
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The Length property returns the highest index element in the array.
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46.
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A For Each loop will execute a loop that effects each array in the
program.
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47.
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When using a For Each loop to process each element in an array, you must specify
the number of iterations for the loop.
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48.
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As with other variables, an array declared as a class level variable is visible
to all procedures within the class.
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49.
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An array declared within a procedure is accessible outside that
procedure.
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50.
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When passing an array ByVal to a Sub or Function procedure, the original array
may be changed by the procedure.
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51.
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An array can be returned as a result from a function.
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52.
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When the Sort procedure is applied to an array, the lowest value is placed in
the first element.
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53.
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A sequential search is the most efficient way of searching for an
element.
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54.
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The BinarySearch method requires that the array is already sorted to produce
correct results.
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55.
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Two-dimensional arrays store the elements of tables.
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56.
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An array with two index values for each element is a two-dimensional
array.
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57.
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A nested loop can be used to process all of the elements in a two-dimensional
array.
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58.
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An array can have a maximum of 3 dimensions.
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59.
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A simple text file is called a sequential file.
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60.
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The Peek procedure of a StreamReader object will return –1 when the end of
the file has been reached.
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61.
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A Windows application can only contain one Windows Form object.
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62.
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The Startup object is the first object that is displayed when the application
begins executing.
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63.
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When a form is displayed as modal, no other forms in the application can be
accessed by the user until the form is closed.
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64.
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When the ShowDialog procedure of a Form object is used, command execution is
paused until the form is closed.
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65.
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An instance is a special type of form that can be loaded with another form still
showing.
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66.
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The ShowDialog procedure of a Form object loads a form as modal.
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67.
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The Hide procedure of a Form object removes the form from view.
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68.
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When a form is loaded as modeless, other forms in the application can be
accessed by the user.
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69.
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The Show procedure of a Form object loads a form as modal.
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70.
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An access specifier determines the availability of a variable to other parts of
the application.
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71.
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Modeless forms are used more often that modal forms in Windows
Applications.
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72.
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A variable’s access specifier determines what other forms may access
it.
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73.
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By using the Public Common access specifier, the variable’s values are
shared across all objects within an application.
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74.
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In applications that include multiple forms, it is best to declare as few
Private variables as possible.
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75.
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Objects on a form cannot be referenced from any other form.
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Completion
Complete each
statement.
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76.
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____________________ is an accounting term used to describe the decline in an
asset’s value over a certain period of time.
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77.
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A(n) ____________________ variable is a variable that can store more than one
value.
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78.
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Each ____________________ in an array contains a value.
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79.
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Arrays provide access to data by using a numeric ____________________ to
identify the desired element.
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80.
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When an array is declared, the numeric value specified in parentheses is the
____________________ index, or the highest numbered index of the array.
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81.
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____________________ arrays store related data in two or more arrays.
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82.
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____________________ sized arrays are not initialized with a set size, but
instead are sized at execution to accommodate the listed values.
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83.
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Arrays that are ____________________ can be resized at run time.
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84.
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The ____________________ statement is used to change the size of an array at run
time.
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85.
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The ____________________ keyword is used to keep the existing data inside an
array when the array is resized to a larger size.
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86.
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The ____________________ property of an array contains the number of elements in
an array.
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87.
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The ____________________ loop is a special loop designed specifically to process
every element in an array.
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88.
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An array can be returned from a(n) ____________________ procedure.
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89.
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The array procedure ____________________ arranges the elements in an array from
the smallest value to the largest.
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90.
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A(n) ____________________ search of an array starts at the beginning of the
array and inspects each element until a match is found.
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91.
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The ____________________ method repeatedly divides the search interval of an
array in half to dramatically reduce searching time.
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92.
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An array with two indexes for each element is a(n) ____________________
array.
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93.
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A simple text file is called a(n) ____________________ file.
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94.
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The ____________________ object is used to read text from a file into the
program.
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95.
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The IO.File.____________________ procedure checks if a file is available.
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96.
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The IO.File.____________________ procedure opens a text file so that it can be
used by other objects in the program.
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97.
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The ____________________ procedure of the StreamReader class is used to read a
line of text from a file.
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98.
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The ____________________ procedure of the StreamReader object returns the next
character in the file without changing position.
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99.
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The ____________________ object is used to write lines of text to a file.
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100.
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The System.IO ____________________ includes the StreamWriter, which is used to
write a stream of text to a file.
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101.
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____________________ depreciation is calculated by dividing the purchase or
acquisition price of an asset by the life of the asset.
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102.
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A(n) ____________________ is an object variable that references the class name
to access the object’s procedures and properties.
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103.
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The ____________________ procedure of a Form object loads another form, hides
the existing form and stops execution of code on the hidden form until this form is closed.
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104.
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To remove a form from view, the ____________________ procedure of the Form
object is used.
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105.
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The code in the accompanying figure shows a(n) ____________________ procedure,
which is one that retains the input focus while open and does not allow the user to switch to other
forms within the application.
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106.
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The ____________________ procedure of a Form object loads a form without
restricting the use of other forms in the application.
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107.
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A form that is shown as ____________________ allows the user to switch to other
forms in the application.
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108.
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The ____________________ keyword on the declaration of a class-level variable
prevents another form from accessing that variable.
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109.
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The access ____________________ (or access specifier) determines what code has
permission to read or write to the variable.
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110.
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If a variable is declared with the Public ____________________ specifier, it can
be used by other classes within the application.
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