By Christian Gross
The Microsoft .NET Framework has long past from energy to power because its inception in November 2000. It now helps a wide and colourful improvement neighborhood longing for new options and ideas. visible Studio 2008 including the most recent models of VB, C# and ASP may be the greatest improve to the framework due to the fact that .NET 2.0 in November 2005. for the reason that then there were large alterations within the improvement panorama, with the hot Vista working procedure being published and the '.NET 3.0' package deal of accessories published to help it. In visible Studio 2008 all of those applied sciences, including LINQ, ASP.NET AJAX and a tremendous selection of new language beneficial properties, are being introduced jointly right into a unmarried cohesive unit in the back of the visible Studio interface. starting VB 2008 is being written from scratch, in particular for this re-creation of VB, by way of a well-respected writer to educate newcomers how one can use the hot framework to their most sensible virtue. Readers will study every thing they should comprehend to familiarize yourself with this state of the art know-how.
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Additional info for Beginning VB 2008: From Novice to Professional (Expert's Voice in .Net)
For those who have learned the decimal system with placeholders, you start counting at 0, continue to 9, and then the next number is a decimal increment called 10. The decimal system is originally accredited to the Babylonians, but they used a decimal system that was sexagesimal (60 unique identifiers versus our decimal 10 unique identifiers). The computer has a similar counting scheme, except it is binary with only two unique identifiers: 1 and 0. Computers have two unique identifiers because they signify two unique states: on and off.
ReadKey() End Sub End Module But shorthand like this has a downside. What if we had many references, each containing a class called Class1? In this case, Visual Basic Express wouldn’t know which Class1 to use without the help of longhand. Granted, you are not likely to name multiple classes Class1, but even sensible names can be duplicated in a collection of references. And if you are using someone else’s code as a reference, the possibility of duplicate names becomes higher. Therefore, you’re better off using longhand in this case.
Do you think of adding two very large numbers (such as 2 billion plus 2 billion) and two smaller numbers (such as 2 plus 2) as different? No, because to humans, the major difference between 2 billion and 2 is a bunch of zeros; the result is either 4 billion or 4, which seems very trivial. Yet with respect to a computer, 4 billion is very different from 4, as you’ll soon see. ReadKey() End Sub Now run the very large number test. You will see the output shown in Figure 2-12. What happened? The problem has to do with the addition of very large numbers that cause an overflow, which is a computer construct.
Beginning VB 2008: From Novice to Professional (Expert's Voice in .Net) by Christian Gross