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Visual Basic .NET / OOP

Class

Learn Class in Visual Basic .NET through a focused explanation, a dedicated construct-specific example, an engineering boundary, and a mastery check.

10 min read • Intermediate

Class is an atomic Visual Basic .NET topic inside OOP. This lesson focuses on how the Class construct is written, what it changes, and when it is the right tool.

Trace the example line by line. Identify the exact syntax for Class, the input state before it runs, and the resulting value, control flow, database state, hardware behavior, or runtime effect afterward. Neighboring lessons use different constructs rather than renamed copies of this one.

Topic-specific example

vbnet-04-01-class.vb
vbnet Try It Live 
Class Invoice
    Public Property Total As Decimal
End Class
Dim x=New Invoice With {.Total=42D}
Console.WriteLine(x.Total)
Edge case / engineering note

For Class, test the boundary that belongs to this exact feature rather than a generic failure case. Check invalid or empty input, NULL/unknown state, numeric limits, transaction or exception behavior, synthesis/runtime constraints, ownership/permission rules, or backtracking/control-flow effects where they apply.

Content source & attribution
Original Syntaxis Content · Original Syntaxis Content

Lesson quizzes

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