If Gender = "M" Then in Visual Basic .NET

Generating Quick Response Code in Visual Basic .NET If Gender = "M" Then
If Gender = "M" Then
Encoding Denso QR Bar Code In Visual Basic .NET
Using Barcode printer for VS .NET Control to generate, create QR Code 2d barcode image in .NET applications.
is the start of a code structure that decides which of two sections of code to execute, depending on the outcome of a Boolean assertion If the value stored in the Gender variable is "M", the statement:
Painting Barcode In VB.NET
Using Barcode creation for .NET framework Control to generate, create barcode image in VS .NET applications.
ConsoleWriteLine("{0} is male", Name)
Make QR Code 2d Barcode In Visual C#.NET
Using Barcode generator for VS .NET Control to generate, create QR Code 2d barcode image in .NET applications.
will be executed If not, the alternative statement indicating that the named person is female will execute In this case, the assertion Gender = "M" is used directly The second such IfThen construct makes use of the Boolean value stored in the LicensedDriver variable to the same ends
Creating Denso QR Bar Code In VS .NET
Using Barcode creator for ASP.NET Control to generate, create QR Code image in ASP.NET applications.
32 Variables
Quick Response Code Generator In .NET Framework
Using Barcode creation for VS .NET Control to generate, create QR image in VS .NET applications.
Exercise 32
Make Barcode In Visual Basic .NET
Using Barcode encoder for .NET Control to generate, create barcode image in .NET framework applications.
Select variable types from Table 31 to suit the following purposes, and write suitable Dim statements to declare them A variable, ProgLang, to store the value Visual Basic NET A variable, Xmas, to store the value 25/12/03 A variable, Attendance, to store the number of people present at a football match (assume the stadium has a capacity of 10 000) d) A variable, Attendance, to store the number of students in a classroom which has a capacity of 25 e) A variable, Fuel, to store the exact number of gallons of fuel pumped into a vehicle s tank f) A variable, Category, to store a value in from the range A , B , C , D or E g) A variable to store the distance in miles from the earth to the moon (approx 250 000) h) A variable to store the exact time that a customer places an order with an eCommerce website a) b) c)
Encoding Bar Code In VB.NET
Using Barcode maker for .NET Control to generate, create barcode image in .NET applications.
322 Constants
Code 3/9 Printer In VB.NET
Using Barcode creator for .NET Control to generate, create Code 39 image in .NET framework applications.
A constant is a variable whose value can not be changed What use is that you might ask Well, as it turns out, very useful, since there are often situations when we want to make use of a value that will be xed but is dif cult to remember or recognize, or that is generally xed in a program, but may change infrequently if the program is changed We can give a value a name and optionally a type by declaring it as a constant, using the keyword Const:
Code 128 Code Set B Creation In Visual Basic .NET
Using Barcode generation for Visual Studio .NET Control to generate, create USS Code 128 image in .NET applications.
Const PI = 31415927 Const VATPercentRate = 175 Const DatabaseName = "SALESMDB"
Encode ECC200 In Visual Basic .NET
Using Barcode encoder for Visual Studio .NET Control to generate, create DataMatrix image in .NET framework applications.
In the three statements shown, PI has been declared a constant since, unless there is a change in the physical laws of the universe, it will always be this value, VATPercentRate is a constant because at the time of writing (and for a long period up till now), Value Added Tax in the UK has been set at 175%, and DatabaseName is a constant because we could be using this le name throughout an application program we are developing However, although we will never change the value of PI, we might wish to update our application by altering the VATPrecentRate if this is changed in a future budget, and we might decide to use another name for our database le in the nal release version of the software Using constants in these situation means that it will be much easier to nd the single declaration in a program and change the value there, than it would be to have to track down and change every instance of the number or text it represents throughout a program
Making EAN / UCC - 13 In Visual Studio .NET
Using Barcode generator for .NET Control to generate, create GTIN - 128 image in .NET framework applications.
3 n The Visual Basic NET Language
Data Matrix Decoder In VS .NET
Using Barcode scanner for .NET Control to read, scan read, scan image in Visual Studio .NET applications.
323 Identi ers and Literal Values
Barcode Encoder In Visual Studio .NET
Using Barcode generator for .NET framework Control to generate, create bar code image in .NET applications.
Note that when we refer to a string variable in program code, its name is used directly, as with any other type of variable However, when we refer to actual text in code, we must enclose it in double quotes (") If we did not do this, Visual Basic would nd it impossible to differentiate between an identi er for a variable and a string For example, the statements:
Making Barcode In VS .NET
Using Barcode drawer for Visual Studio .NET Control to generate, create bar code image in .NET framework applications.
Name = Fred
Printing Data Matrix ECC200 In .NET
Using Barcode generator for ASP.NET Control to generate, create Data Matrix image in ASP.NET applications.
Name = "Fred"
UPC-A Supplement 2 Generator In Visual Studio .NET
Using Barcode printer for .NET framework Control to generate, create UPC-A Supplement 5 image in VS .NET applications.
differ in that the rst assigns the contents of a variable Fred to another variable, Name, while the second assigns the text Fred to the variable Name We don t have this type of problem when dealing with other data types because numbers, dates and values like True and False cannot be used as identi ers in program code a rule de ned in the Visual Basic language (and almost every other programming language as well) Microsoft has de ned a number of rules you must follow when declaring a name for a variable (or anything else that can be named in a program) Every declared element has a name, also called an identi er, which is what the code uses to refer to it An element name:
UPC Symbol Recognizer In .NET Framework
Using Barcode reader for Visual Studio .NET Control to read, scan read, scan image in VS .NET applications.
Painting Barcode In Java
Using Barcode encoder for Java Control to generate, create barcode image in Java applications.
Code 39 Full ASCII Generation In Java
Using Barcode printer for Java Control to generate, create Code 3/9 image in Java applications.