November 2001
Intermediate to advanced
512 pages
9h 10m
English
Content preview from Visual Basic Design Patterns: VB 6.0 and VB.NETBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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Chapter 8. Arrays, Files, and Exceptions in VB.Net
VB7 makes some significant changes in the ways you handle arrays and files and completely changes error handling. All of these changes make your programming a lot easier than it was before.
Arrays
In VB7, all arrays are zero based. This is actually the same as in previous versions of Basic, but it was seldom emphasized. In VB6, if you wrote the following
Dim x(10) As Single
then you assumed that the x array had elements from 1 to 10, but it actually always included a zero element as well. In other words, the x array actually had 11 elements. This remains true in VB7.
However, we can also now move through arrays to be in line with the style used in C, C++, C#, and Java.
Dim Max as Integer Max = 10 ...
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I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
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