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Visual Basic Quickstart Guide

You're reading from   Visual Basic Quickstart Guide Improve your programming skills and design applications that range from basic utilities to complex software

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Product type Paperback
Published in Oct 2023
Publisher Packt
ISBN-13 9781805125310
Length 238 pages
Edition 1st Edition
Languages
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Author (1):
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Aspen Olmsted Aspen Olmsted
Author Profile Icon Aspen Olmsted
Aspen Olmsted
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Table of Contents (27) Chapters Close

Preface 1. Part 1:Visual Basic Programming and Scripting FREE CHAPTER
2. Chapter 1: The Visual Basic Family of Programming Languages 3. Chapter 2: Console Input and Output 4. Chapter 3: Data Types and Variables 5. Chapter 4: Decision Branching 6. Chapter 5: Iteration 7. Chapter 6: Functions and Procedures 8. Chapter 7: Project Part I 9. Part 2:Visual Basic Files and Data Structures
10. Chapter 8: Formatting and Modifying Data 11. Chapter 9: File Input and Output 12. Chapter 10: Collections 13. Chapter 11: Project Part II 14. Part 3:Object-Oriented Visual Basic
15. Chapter 12: Object-Oriented Programming 16. Chapter 13: Inheritance 17. Chapter 14: Polymorphism 18. Chapter 15: Interfaces 19. Chapter 16: Project Part III 20. Part 4:Server-Side Development
21. Chapter 17: The Request and Response Model 22. Chapter 18: Variable Scope and Concurrency 23. Chapter 19: Project Part IV 24. Chapter 20: Conclusions 25. Index 26. Other Books You May Enjoy

Methods

In VB, methods define the behavior or actions that objects can perform. Methods are described within classes and are responsible for performing specific tasks or calculations.

Method declaration

To define a method in VB, use the Sub or Function keyword, followed by the method’s name and any parameters it accepts. Here’s an example:

Public Sub MyMethod(parameter1 As Integer, parameter2 As
  String)
    ' Method body
End Sub

In the preceding example, MyMethod is a public method that accepts an integer parameter named parameter1 and a string parameter named parameter2.

Next, let’s drill into the types of methods we can have in our classes:

  • Sub procedures: Sub procedures are methods that do not return a value. They are typically used for performing actions or tasks without producing a result. Here’s an example:
    Public Sub DisplayMessage(message As String)
        Console.WriteLine...
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