Exam 6: The Repetition Structure

Write a pretest loop that adds together the integers 2,4,6,8,10,12,14,16,18,and 20.Use the intNum variable to keep track of the integers.Store the result in the intResult variable (which contains the number 0).Use the For...Next statement.

In a nested repetition structure,one loop,referred to as the ____ loop,is placed entirely within another loop,called the ____ loop.

The loop created by the For...Next statement is a ____ loop.

Explain the purpose of priming and update reads in a program.

In a For...Next statement,if stepValue is positive,then startValue must be ____ endValue for the loop instructions to be processed.

The assignment statement that updates a counter or an accumulator is placed within the loop in a procedure.

In a pretest loop,the evaluation of the condition occurs after the instructions within the loop are processed.

A ____ structure is also referred to as a loop.

Which of the following statements pauses program execution for 3 seconds?

The symbol used to represent a loop condition on a flowchart is the ____ symbol.

Each time either the user or a statement selects an item in a list box,the list box's SelectedValueChanged and ____ events occur.

The repetition programming structure is used to make decisions in a program.

Explain the difference between using the keywords While and Until within a Do...Loop statement.

The following code in a different program is not working properly.The message should display the value of the intCounter variable if the intCounter variable contains a balance that is less than or equal to 15.The message does not display.What mistake did the previous programmer make?

The following code is not working properly.The message should display four times.What needs to be changed for the code to work properly?

A(n)____ is a numeric variable used for adding together something.

You can use either the SelectedItem or ____ property to determine whether an item is selected in a list box.

Like the condition in a selection structure,the condition in a loop must evaluate to either True or False.

Your supervisor wants you to change the Do...Loop in the previous problem to a For...Next loop.He also wants the message to display only three times.Which of the following For clauses should you use?

Explain the difference between a pretest loop and a posttest loop.