Скачать или смотреть DrWedding VB05 Visual Basic: Variables, Math, and Error checking with Try / Catch

INDEX BELOW: Jump to 5:42 to skip the PowerPoint Introduction. This video covers declaring and using variables, math (using the order of operations P/E/MD/AS), and error checking using "Try / Catch / End Try". If you have made it this far - you are going to make it! Keep on going! As always – Please Like and subscribe so I can continue to make these videos!

As with all the videos in this series, the video starts with an Introductory Power Point presentation of what is going to be covered in this video. Next, multiple examples are written and demonstrated using Visual Basic. Finally, a Power Point presentation is used to review the major topics.

0:00 Introduction
0:10 PowerPoint - What is a variable, how to declaring variables
1:05 PowerPoint - Variable types
2:53 PowerPoint - Access level, Global (Module Scope) and Local (Procedural Scope) variables
4:30 PowerPoint - Math P-E-MD-AS and (Destination = Source)
5:20 PowerPoint - Error checking with Try/Catch/End Try
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5:36 Demonstration - Opening a project, create a form, generate variables
8:15 Demonstration - Moving values between textboxes and variables
10:38 Demonstration - Try/Catch/End Try
13:15 Demonstration - Write a program calculate the area of a circle given the radius
15:15 Demonstration - Formatting numbers
16:45 Demonstration - Constants such as PI
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18:25 PowerPoint - Review
21:32 Like / Subscribe / Disclaimer