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Summary Moc Programming In C# 20483B

- c#
- nvt
- 2015 - 2016
- Computrain
- doc on demand 20483B
595 Flashcards & Notes
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A snapshot of the summary - moc programming in c# 20483b

  • 1 module 1

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  • The .NET Framework 4.5 provides three principal elements:
    The Common Language Runtime (CLR). 
    The .NET Framework class library. 
    A collection of development frameworks.
  • The CLR manages the execution of code and simplifies the development process by providing a robust and highly secure execution environment that includes:
    • Memory management.
    • Transactions.
    • Multithreading.
  • The .NET Framework provides several development frameworks that you can use to build common application types, including:
    Desktop client applications, by using Windows Presentation Foundation (WPF). 

    Windows 8 desktop applications, by using XAML. 

    Server-side web applications, by using Active Server Pages (ASP.NET) Web Forms or ASP.NET MVC. 

    Service-oriented web applications, by using Windows Communication Foundation (WCF).

    Long-running applications, by using Windows services.
  • Visual C# is a type-safe language, which means that?
    the compiler guarantees that values stored in variables are always of the appropriate type.
  • Operators fall into the following three categories:
    • Unary. This type of operator operates on a single operand. For example, you can use the - operator as a unary operator. To do this, you place it immediately before a numeric operand, and it converts the value of the operand to its current value multiplied by –1.

    • Binary. This type of operand operates on two values. This is the most common type of operator, for example, *, which multiplies the value of two operands.

    • Ternary. There is only one ternary operator in Visual C#. This is the ? : operator that is used in conditional expressions.
  • Which rules apply to identifiers?

    An identifier can only contain letters, digits, and underscore characters.

    An identifier must start with a letter or an underscore.

    An identifier for a variable should not be one of the keywords that Visual C# reserves for its own use.
  • can u use an unassigned variable?
    Visual C# does not allow you to use an unassigned variable.
  •  When the compiler sees the var keyword...
     it uses the value that is assigned to the variable to determine the type.
  • There are two types of conversions in the .NET Framework:

    Implicit conversion, which is automatically performed by the CLR on operations that are guaranteed to succeed without losing information.

    Explicit conversion, which requires you to write code to perform a conversion that otherwise could lose information or produce an error.
  • Visual C# prohibits implicit conversions that:
    lose precision

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