Murach's Visual Basic 2008
How to work with numeric and string data

This chapter shows you how to perform arithmetic operations on various types of numeric data and how to work with string data. Beyond that, this chapter presents three important subjects that are usually treated too lightly or too late in other books: casting, data conversion, and scope.

Chapter 4 How to work with numeric and string data
How to work with the built-in value types 100
The built-in value types 100
How to declare and initialize variables 102
How to declare and initialize constants 102
How to code arithmetic expressions 104
How to code assignment statements 106
How to work with the order of precedence 108
How to use casting 110
How to change the type semantics 112
How to use the Math class 114
How to work with strings 116
How to declare and initialize a string 116
How to join and append strings 116
How to convert data types 118
The .NET structures and classes that define data types 118
How to use Visual Basic functions to convert data types 120
How to use methods to convert data types 122
How to use three of the formatting functions 124
How to use methods to convert numbers to formatted strings 126
Three other skills for working with data 128
How to work with scope 128
How to declare and use enumerations 130
How to work with nullable types 132
Two versions of the Invoice Total application 134
The basic Invoice Total application 134
The enhanced Invoice Total application 136


© Copyright 1998-2008 Mike Murach & Associates, Inc.  All rights reserved.

Murach's VB 2008

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