Chapter 7, Problem 8RQ

السؤال Which of these keywords is used to prevent content of a variable from being modified? الاجابات static   constatnt   final   last

Which of the following statements adds the number stored in the decPrice variable to the number stored in the decSubtotal variable, and then assigns the result to the decSubtotal variable?   a. decSubtotal =+ decPrice     b. decPrice =+ decSubtotal     c. decSubtotal += decPrice     d. decPrice += decSubtotal

Which of the following rounds the contents of the dblSales variable to two decimal places? a. dblSales = Math.Round(dblSales, 2) b. dblSales = Math.Round(2, dblSales) c. dblSales = Round.Math(dblSales, 2) d. dblSales = Round.Math(2, dblSales)

Which of the following R commands evaluates to TRUE?a) 5 >= 5b) TRUE & FALSE | FALSE & TRUEc) FALSE & FALSE & FALSE | TRUEd) !(((TRUE > FALSE) > TRUE) & !TRUE)

Which of the following statements invokes the CalcArea Sub procedure, passing it two variables by value?a. Call CalcArea(dblLength, dblWidth)b. Call CalcArea(ByVal dblLength, ByVal dblWidth)c. Call CalcArea ByVal(dblLength, dblWidth)d. Call ByVal CalcArea(dblLength, dblWidth)

Which of the following is a valid header for a procedure that receives an integer followed by a number with a decimal place? a. Private Sub GetFee(intBase As Value, decRate As Value) b. Private Sub GetFee(ByRef intBase As Integer, ByRef decRate As Decimal) c. Private Sub GetFee(ByVal intBase As Integer, ByVal decRate As Decimal) d. None of the above.

Which of the following If clauses determines whether the user pressed the % key? a. If ControlChars.PercentSign = True Then b. If e.KeyChar = "%" Then c. If e.KeyChar = Chars.PercentSign Then d. If e.KeyChar.ControlChars = "%" Then

Which of the following declares a procedure-level String variable? a. Dim String strCity b. Dim strCity As String c. Private strCity As String d. Both b and c.

What does :last serve as in the following statement? 'SELECT FName, LName from users where LName = :last'