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Thread: C# For Beginners

  1. #1
    Join Date
    Aug 2008
    Posts
    52

    C# For Beginners

    C#, pronounced c sharp, is a computer language used to give instructions that tell the computer what to do, how to do it, and when to do it. This is a universal language that is used on many operating systems , including Microsoft Windows. C# is one of the languages used in the Microsoft .NET Framework. The Microsoft .NET Framework is a library of objects that create or draw things on the computer.

    The C# language is used to create applications that display on a black window referred to as the DOS prompt or DOS window.

    You should first open a DOS command shell. (If you don't know what it is, clic on the Start menu then run (at the bottom) and type, in the text field: "cmd".
    exercise: there is an easiest way to do that, try to find it.)
    You should begin to work in an empty directory for this. let call it "C:\learncs". Type in the shell:

    Code:
    > md C:\learncs
    > cd C:\learncs
    > C:
    Now you should create your first C# program, type "notepad hello.cs" and type (in the notepad)

    Code:
    using System;
      
        public class Hello
        {
            public static void Main()
            {
                Console.WriteLine("Hello C# World :-)");
            }
        }
    the using keyword just let you write Console at line 7, instead of System.Console. It's very usefull shortcut when you use a lot of "class" define in System.
    Save the file.
    Now you could compile. Type in the DOS Shell again and type:
    csc /nologo /out:hello.exe hello.cs

    You probaly have some errors, correct them, compile again, and now you have a working hello.exe program... type hello, see...

  2. #2
    Join Date
    May 2008
    Posts
    143

    Re: C# For Beginners

    • uses the namespace System
    • entry point must be called Main
    • output goes to the console
    • file name and class name need notbe identical


    Structure of C# ProgramsProgrammFile

    • If no namespace is specified => anonymous default namespace
    • Namespaces may also contain structs, interfaces, delegates and enums
    • Namespace may be "reopened" in other files
    • Simplest case: single class, single file, default namespace

  3. #3
    Join Date
    May 2011
    Posts
    2

    Re: C# For Beginners

    Hello,
    I have recently read about a solution related to C#. It was about how to create IVR DTMF system. It is software product that can receive incoming calls automatically and answers them. The callers are received by a voice menu. So dealing with calls is perfectly automated. This system can replace a complete customer service. This system based on an SDK.
    Share your opinion!

  4. #4
    Join Date
    May 2008
    Posts
    685

    Re: C# For Beginners

    Hello,
    I have recently read about a solution related to C#. It was about how to create IVR DTMF system. It is software product that can receive incoming calls automatically and answers them. The callers are received by a voice menu. So dealing with calls is perfectly automated. This system can replace a complete customer service. This system based on an SDK.
    Share your opinion!
    The most recent version 5.0.0.1 comprises a completely customizable full IVR ("Interactive Voice Response") menu system you can at a standstill utilize the DTMF command/ on error response interface if you hope lacking any voice menu or a grouping of both a voice menu with DTMF on error reactions or no DTMF on error responses and rerun the voice menu, primed of any DTMF on error responses when/if they take place.

    This instance works with both usual Skype names and with/without Skype Online Numbers plus Business Account Skype names with/without allocated Skype Online Numbers shaped from the Skype Business Manager. The instance works with both the usual and business versions of the Skype clients for Windows.

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