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Question
Although there is nothing wrong with declaring all variables at the beginning of a procedure, many programmers would prefer to create a variable only if it is necessary to do so.Answer
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Related questions
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The ____ property specifies how an image is displayed. a.
Display b.
Mode c.
Size d.
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The ____ property specifies the name of the file containing the image to display. a.
Image b.
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The easiest way to close an open window is to click the ____ button on the window's title bar. a.
Close Project b.
New Project c.
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Q:
A ____ is a container that stores the projects and files for an entire application. a.
user interface b.
program environment c.
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A(n) ____ is an environment that contains all of the tools and features you need to create, run, and test your programs. a.
integrated development environment b.
integrated operating environment c.
user development environment d.
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A(n) ____ is what sees and interacts with while using a program.
a. operating environment
b. interface environment
c. user interface
d. user environment
Q:
The Format menu has a Center in Form option that centers one or more controls either horizontally or vertically on the form.
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To include an image file within a project itself, the Project resource file radio button must be selected in the Select Resource dialog box.
Q:
It is a good practice to save the current solution every few hours so that you will not lose a lot of your work if the computer loses power.
Q:
A label control is used to display text that the user is not allowed to edit while the application is running.
Q:
____ data is data that the algorithm is not expecting the user to enter. a.
Invalid b.
Checked c.
Unchecked d.
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Q:
You ____ an algorithm to verify that it is not missing any steps, and that the existing steps are correct and in the proper order. a.
desk-trace b.
desk-check c.
program-check d.
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Q:
When an algorithm becomes more complex, the program's logic may be easier to see in ____. a.
code b.
a processor c.
pseudocode d.
a flowchart
Q:
An algorithm should state both what is to be calculated and ____ to calculate it. a.
where b.
when c.
how d.
who
Q:
If a problem specification indicates that the program's user wants to see the amount of her annual commission displayed on the screen, the ____ is the annual commission. a.
yield b.
output c.
symbol d.
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Q:
You can draw the flowchart symbols by hand; or, you can use the drawing or shapes feature in a word processor.
Q:
Pseudocode is standardized.
Q:
The first step that programmers follow when they solve problems is to plan the algorithm.
Q:
The instruction "Do homework problems until done" is an example of the ____ structure. a.
control b.
repetition c.
selection d.
sequence
Q:
Programmers must use the repetition structure in every program they write.
Q:
All computer programs, no matter how simple or how complex, are written using one or more of three basic structures: sequence, selection, and repetition.
Q:
To accumulate the values stored in an array, you need to access each array element.
Q:
If you need to access each element in a two-dimensional array, you typically do so using an outer loop and a nested loop.
Q:
The variables (elements) in a two-dimensional array can be used just like any other variables.
Q:
You refer to each element in a two-dimensional array by the array's name and the element's row and column subscripts.
Q:
Elements located in the first column in a two-dimensional array are assigned a column subscript of 1.
Q:
An empty array is declared using an empty set of ____. a.
slashes b.
brackets c.
braces d.
curly braces
Q:
An array whose number of elements changes while an application is running is referred to as a(n) ____ array. a.
dynamic b.
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active d.
renewing
Q:
The optional ____ keyword in the syntax of the ReDim statement tells the computer to keep the current array values when the size of the array changes. a.
Keep b.
Protect c.
Save d.
Preserve
Q:
When two or more procedures in an application may need to use the same variable or array, you can declare the memory locations in the form's ____ section.
a. Memory
b. Storage
c. Declarations
d. Statements