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Question
You can use the Exists method to avoid the run time error that occurs when the computer cannot locate the file you want opened for input.Answer
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Related questions
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The ____ property specifies how an image is displayed. a.
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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.
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A ____ is a container that stores the projects and files for an entire application. a.
user interface b.
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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.
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a. operating environment
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c. user interface
d. user environment
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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.
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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.
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A label control is used to display text that the user is not allowed to edit while the application is running.
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____ data is data that the algorithm is not expecting the user to enter. a.
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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.
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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
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An algorithm should state both what is to be calculated and ____ to calculate it. a.
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when c.
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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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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.
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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.
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You refer to each element in a two-dimensional array by the array's name and the element's row and column subscripts.
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Elements located in the first column in a two-dimensional array are assigned a column subscript of 1.
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An empty array is declared using an empty set of ____. a.
slashes b.
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An array whose number of elements changes while an application is running is referred to as a(n) ____ array. a.
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active d.
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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.
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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
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