Sams Teach Yourself Visual Basic 6 in 24 Hours

By Greg Perry

• Table of Contents
  • Copyright
  • About the Author
  • Acknowledgments
  • Introduction
  • Who Should Read This Book
  • What This Book Will Do for You
  • Can This Book Really Teach Visual Basic in 24 Hours?
  • What You Need
  • Files on the Visual Basic Distribution CD-ROM
  • Conventions Used in This Book
  • Enough! Time Is Ticking!
  • Part I: Introducing Visual Basic
  • Hour 1. Visual Basic at Work
  • Hour 2.Analyzing Visual Basic Programs
  • Hour 3.Controls and Properties
  • Hour 4.Examining Labels, Buttons, and Text Boxes
  • Part II: Coding the Details
  • Hour 5.Putting Code into Visual Basic
    • Coding Basics
    • Data Basics
    • Expressions and Math Operators
    • Summary
    • Q&A
    • Workshop
  • Hour 6.Message and Input Boxes
  • Hour 7.Making Decisions
  • Hour 8.Visual Basic Looping
  • Part III:Putting Code to Work
  • Hour 9.Combining Code and Controls
  • Hour 10.List Boxes and Data Lists
  • Hour 11.Additional Controls
  • Hour 12.Dialog Box Basics
  • Part IV:Programming with Data
  • Hour 13.Modular Programming
  • Hour 14.Built-In Functions Save Time
  • Hour 15.Visual Basic Database Basics
  • Hour 16.Printing with Visual Basic
  • Part V:Sprucing Up Programs
  • Hour 17.Menus and Visual Basic
  • Hour 18.The Graphic Image Controls
  • Hour 19.Toolbars and More Graphics
  • Hour 20.Writing Correct Applications
  • Part VI:Advancing Visual Basic Applications
  • Hour 21.Visual Basic and ActiveX
  • Hour 22.Object Basics
  • Hour 23.Distributing Your Applications
  • Hour 24.Online Visual Basic
  • Part VII:Appendixes
  • Appendix A.Operator Precedence
  • Appendix B.Answers
  • Appendix C.Using the CD-ROM

Workshop

The quiz questions and exercises are provided for your further understanding. See Appendix B for the answers.

Quiz

1. What is a datatype?

2. What is the difference between a String and a Boolean datatype?

3. What are two controls that behave as if they conform to the Boolean datatype?

4. What is the difference between a literal and a variable?

5. Which of the following are invalid variable names?

   12Months
   a
   85
   "curSalesForecast"
   Acctg98
                 

6. Which operator performs two operations?

7. What is the difference between a fixed-length string and a variable-length string?

8. What value would Visual Basic store in the following ans variables?

   a. ans = 1 + 2 + 3 + 4 / 2
   b. ans = 1 + 2 + 3 + (4 / 2)
   c. ans = 2 ^ 5
   d. ans = 25 - 8 / 2 ^ 2 + 1
                 

Exercises

1. Write code that declares these variables: your first name, your last name, your age, your tax rate, and whether you are married.
2. Write an application that accepts your age in a text box and then displays, when you click a command button, your age in dog years (your age divided by 7). Don't worry about rounding that might take place.

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