Exam 3: Variables and Calculations

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The order in which controls receive the focus is called the __________.

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The control is used to gather input the user has typed at the keyboard.

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What is the result after evaluating the following expression: 24 MOD 9

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What is the value of dblOutcome after the following section of code executes? Dim dblA as Double Dim dblB as Double Dim dblC as Double Dim dblOutcome as Double DblA = 45 DblB = 30 DblC = 3 * dblA / dblB DblOutcome = 2 * (dblC + 15)

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What is the value of intE after the following statements execute? Dim intC As Integer Dim intD As Integer Dim intE As Integer IntC = 20 IntD = 3 IntE = intC \ intD

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Identify the error in the following code: Private Sub btnCalculate_Click(ByVal sender As System.Object, _ ByVal e As System.EventArgs) Handles btnCalculate.Click ' Declare some variables Dim sngNumber1 As Single Dim sngNumber2 As Single Dim sngSum As Single ' Get the two numbers SngNumber1 = txtNumber1.Text SngNumber2 = txtNumber2.Text ' Calculate their sngSum... is the next line working? SngSum = sngNumber1 + sngNumber2 ' Display the result LblSum.Text = sngSum.ToString End Sub

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When you assign a value of one data type to a variable of another data type, Visual Basic attempts to perform _____type conversion.

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You can break up a long statement into multiple lines as long as you don't break up a __________.

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Only controls capable of receiving some sort of input, such as _________________, may have the focus.

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You can perform all of the following actions with variables except:

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What will be the value of intAnswer after execution of these statements? Const intNumA As Integer = 6 Const intNumB As Integer = 2 IntAnswer = intNumA / intNumB + intNumA * intNumB

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The value returned by passing #12/31/10# to the CSng function is_________________

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A Date literal can contain _____________.

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The contents of a text box may be cleared in Visual Basic code by __________.

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If you want to display multiple lines of information in a message box, use the constant .

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A form's Load event takes place when the user first clicks on the form at run time.

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All numeric and date data types have a ______method that returns a string representation of the contents of the variable.

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What is the purpose of using the following type of structure? Try Some statements Catch Other Statements End Try

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A variable is a storage location on a computer's hard drive that holds information while the computer is off.

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The operator performs string concatenation.

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