Exam 6: Procedures and Functions

Which of the following examples correctly uses an input box to assign a value to an integer, and returns the integer to the calling program using a reference parameter?

Which of the following can be returned by a function?

When a parameter is declared using the ______qualifier, the procedure has access to the original argument variable and may make changes to its value.

In the context of Visual Basic procedures and functions, what is an argument?

A procedure may not be accessed by procedures from another class or form if the ______access specifier is used.

What is the syntax error in the following procedure? Sub DisplayValue(Dim intNumber As Integer) MessageBox.Show(intNumber.ToString()) End Sub

All of the following are true about functions except __________.

Which of the following code examples is a function that will accept three integer parameters, calculate their average, and return the result?

Which of the following calls to the GetNumber procedure is not valid? Sub GetNumber(ByVal intNumber as Integer) ' (procedure body) End Sub

Which statement is true in regard to passing an argument by value to a procedure?

What is the value of intTotal after the following code executes? Dim intNumber1 As Integer = 2 Dim intNumber2 As Integer = 3 Dim intTotal As Integer IntTotal = AddSquares(intNumber1, intNumber2) Function AddSquares(ByVal intA As Integer, ByVal intB As Integer) As Integer IntA = intA * intA IntB = intB * intB Return intA + intB IntA = 0 IntB = 0 End Function

If you do not provide an access specifier for a procedure, it will be designated ______by default.

Which of the following functions accepts a parameter named dblSales and returns the commission to the calling statement? Assume that the commission should equal the sales multiplied by the commission rate. Use the following table as a guide to the calculation of the commission rate.

Which of the following procedure declarations matches the call to the IsLetter procedure below? Dim strText as String = txtInput.Text Dim blnLetter as Boolean = IsLetter(strText)

What is assigned to lblDisplay.Text when the following code executes? Dim intNumber As Integer = 4 AddOne(intNumber, 6) LblDisplay.Text = intNumber ' Code for AddOne Public Sub AddOne(ByVal intFirst As Integer, ByVal intSecond As Integer) IntFirst += 1 IntSecond += 1 End Sub

By writing your own procedures, you can ______an applications code, that is, break it into small, manageable procedures.

Choose a new, more descriptive name for the WhatIsIt function based on the result of the code below. Function WhatIsIt(ByVal intRepeat as Integer) as Integer Dim intResult as Integer = 1 Dim intCount as Integer For intCount = 1 to intRepeat IntResult = intResult * 2 Next intCount Return intResult End Function

When calling a procedure, passed arguments and declared parameters must agree in all of the following ways except __________.

Which debugging command executes a function call without stepping through function's statements?

A is a special variable that receives a value being passed into a procedure or function.