By Bill Sempf
A logical, effortless method of studying the C# language
C# is a classy programming language for construction .NET-connected software program for Microsoft home windows, the internet, and quite a lot of units. The pleasant All-in-One For Dummies structure is an ideal strategy to current it. each one minibook is a self-contained package deal of worthwhile info, making it effortless to discover what you are looking for.
Upgrades in C# 2010 comprise the facility to construct home windows 7 functions and compatibility with Python and Ruby.
- C# is a just a little complicated programming language for development .NET-connected software program for Microsoft home windows, the net, and different devices
- Beginning C# programmers will savour how the All-in-One layout breaks the subject into minibooks, every one addressing a key physique of information
- Minibooks comprise growing your first C# software, home windows 7 programming, uncomplicated C# programming, object-based programming, object-oriented programming, home windows programming with C# and visible Studio, and debugging
- Companion site contains all pattern code
Beginning C# programmers will locate C# 2010 All-in-One For Dummies explains a classy subject in a simple, comprehensible way.
Note: CD-ROM/DVD and different supplementary fabrics should not integrated as a part of book file.
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Extra resources for C# 2010 all-in-one for dummies
Example text
The second declaration not only declares an int variable m but also initializes it with a value of 2, all in one shot. The term initialize means to assign an initial value. To initialize a variable is to assign it a value for the first time. You don’t know for sure what the value of a variable is until it has been initialized. Nobody knows. What’s an int? 27 Rules for declaring variables You can initialize a variable as part of the declaration, like this: // Declare another int variable and give it the initial value of 1.
Also, you can nest one region inside another, but regions can’t overlap. For now, using System; is the only using directive you really need. You can delete the others; the compiler lets you know whether you’re missing one. Taking it out for a test drive To convert your C# program into an executable program, choose Build➪Build Program1. exe /noconfig /nowarn ... (and much more) Making Your Console App Do Something 19 Compile complete -- 0 errors, 0 warnings Program1 -> C:\C#Programs\ ... (and more)==Build: 1 succeeded or up-to-date, 0 failed, 0 skipped== As a general rule of programming, succeeded is good; failed is bad.
Using the Decimal Type: Is It an Integer or a Float? 33 Declaring a decimal Decimal variables are declared and used like any variable type, like this: decimal m1 = 100; decimal m2 = 100M; // Good // Better The first declaration shown here creates a variable m1 and initializes it to a value of 100. What isn’t obvious is that 100 is actually of type int. Thus, C# must convert the int into a decimal type before performing the initialization. Fortunately, C# understands what you mean — and performs the conversion for you.