Visual Basic | Variables and constants exercise | Show number of characters in text using variables

This exercise is provided to allow potential course delegates to choose the correct Wise Owl Microsoft training course, and may not be reproduced in whole or in part in any format without the prior written consent of Wise Owl.

Software ==> Visual Basic  (46 exercises)
Version ==> Any version of VB
Topic ==> Variables and constants  (3 exercises)
Level ==> Relatively easy
Subject ==> Visual Basic training
Before you can do this exercise, you'll need to download and unzip this file (if you have any problems doing this, click here for help).

You need a minimum screen resolution of about 700 pixels width to see our exercises. This is because they contain diagrams and tables which would not be viewable easily on a mobile phone or small laptop. Please use a larger tablet, notebook or desktop computer, or change your screen resolution settings.

Press CTRL + D to add the file called frmWordLength.vb from the above folder into your project (or right click on the project and choose to add it as an existing item). 

Change your project's properties to make this the default form for your project.  When you run your project, you should see this:

Showing length of phrases

The aim of the exercise is to show how many characters are in the phrase typed into the box. 


Double-click on the left button to create an event-handler for it.  Within this, create the following variables:

Variable Type Will hold
phrase string The text typed into the box
phraseLength int The number of characters in the phrase

Extend this code so that when you click on the button you see two messages, one after the other:

The message Number of characters
The first message The second message

Now get the second button to work, using the Replace method to replace any spaces with empty strings:

The second button message

When you click on the second button you should see a lower total, which omits spaces.  For example, "Wise Owl".Replace(" ","") would return WiseOwl.


That's it!  You can now close down any files that you have left open, and plan how to fund your new software through KickStarter.

You can unzip this file to see the answers to this exercise, although please remember this is for your personal use only.
This page has 0 threads Add post