Repeating statements while a condition is true, Visual Basic Programming

Assignment Help:

Use the While keyword to verify a condition in a Do...Loop statement. You can verify the condition before you enter the loop (as illustrated in the following ChkFirstWhile instance), or you can verify it after the loop has run at least once (as illustrated in the ChkLastWhile instance). In the ChkFirstWhile procedure, if myNum is set to 9 rather than 20, the statements inside the loop will never run. In the ChkLastWhile process, the statements inside the loop run only once since the condition is already False.

Sub ChkFirstWhile() Dim counter, myNum counter = 0

myNum = 20

Do While myNum > 10 myNum = myNum - 1 counter = counter + 1

Loop

MsgBox "The loop made " & counter & " repetitions." End Sub

Sub ChkLastWhile() Dim counter, myNum counter = 0

myNum = 9

Do

myNum = myNum - 1 counter = counter + 1

Loop While myNum > 10

MsgBox "The loop made " & counter & " repetitions." End Sub

The above figure illustrate two example code fragments illustrating the do... loop and do while ... loop statements. In the first loop the condition is verified before executing the code however in the second loop the statements are first executed once and after that the condition is verified. In the first loop the instructions given in the loop's body will never be executed if the condition initially fails but in the second loop these instructions would be executed at least once.  The following flow chart illustrates the execution plan of the second procedure i.e. CheckLastWhile:

1225_Repeating Statements While a Condition is True.png

                Figure: Execution Plan of the Second Loop


Related Discussions:- Repeating statements while a condition is true

C#, I HAVE A C# ASSIGNMENT , WILL I FIND SOMEONE PROFESSIONAL HELP HERE ?

I HAVE A C# ASSIGNMENT , WILL I FIND SOMEONE PROFESSIONAL HELP HERE ?

Windows 32 bit (win 32) applications, WINDOWS 32 BIT (WIN 32) APPLICATIONS ...

WINDOWS 32 BIT (WIN 32) APPLICATIONS   The Win 32 based applications are the applications developed for the windows family of the operating systems. The Win 32 applications ac

If then else - control statement, If Then Else: The control statement ...

If Then Else: The control statement If Then Else is used for computing a condition and taking the action based on the condition. If the condition is true then the section will

Displaying a file with scrolling - document class, Displaying a file With S...

Displaying a file With Scrolling: To display a file with the scrolling option allows the steps as shown below: 1. Generate a SDI application. 2. In the Step 6 of the App

Employee data part 3, create an application that performs the following ope...

create an application that performs the following operation with the employee file created by the application in programming challenge 1: uses an open dialog box to allow the user

Functions, write a v.net function called is vowel that returns true for vow...

write a v.net function called is vowel that returns true for vowel letters

Need help on macros in visual basic, I have an excel list with a lot's of s...

I have an excel list with a lot's of serial numbers that have been entered by hand from PDFs online (1-5 serial numbers per PDF). Many of the values are duplicates, wrong, or conta

Multiple Forms Issue, i want to use two forms in vb.net. when the progress ...

i want to use two forms in vb.net. when the progress bar in form1 reaches on a specific value then disable form1 and progress bar will stop and the second Form2 will popup which wi

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd