Intoduction to c# and basics of .net
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Transcript of Intoduction to c# and basics of .net
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*Introduce C# language
*ECMA standard
*originally developed by MSR
*not just Java + C++
*many extensions
*Introduce .NET framework
*future of Windows
*base of Microsoft’s C# implementation
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*Teach you to program*should be very comfortable writing OO code
*we will not cover much if any basic programming
*Introduce object oriented languages*not even teach you OO style (except wrt C#)
*expected to write all code in OO style
*Give you a detailed grade*S/U only
*even homework
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*Requirements for the course*come to lecture*participate*do three assignments
*Assignments are S/U*will not be giving a detailed grade* show me that you understand the concepts, and can
write C# code
*All three assignments will be online soon*must be completed by the end of the course
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*Class time MWF 12:20-1:10
*office hours: W 10:30-12 or by appointment
*[email protected] (4112 Upson)
*Prerequisites: CS 211/212
*really: experience in OO coding/concepts
*Academic Integrity
*Do not submit work that is not your own
*minimum penalty: U in the course
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*Visual C#*Express: Google “Visual C# Express”
* in Visual Studio: MSDNAA*must be version 2005: we need C# 2.0
*Mono: http://www.go-mono.com *Open Source impl for Linux: not quite at 2.0
*Rotor: http://msdn.microsoft.com/net/sscli *Shared Source impl for Windows (through 2.0)
*Used to work on BSD / OS X, too
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*Portable.NET: http://www.dotgnu.org *yet another open source impl
*CMS: http://cms.csuglab.cornell.edu*we will use this for homework
*turn on your email notifications!
*Course Webpage: http://www.cs.cornell.edu/courses/cs215 *will post lectures online
*as well as any errata for the homework
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*You all will have accounts
*MSDNAA access: let me know if you don’t currently have it
*http://www.csuglab.cornell.edu/userinfo.html
*Visual Studio .NET 2005 should be installed there
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*You all will have accounts
*MSDNAA access: let me know if you don’t currently have it
*http://www.csuglab.cornell.edu/userinfo.html
*Visual Studio .NET 2005 should be installed there
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*Syllabus (10 more lectures)
*C# constructs: 5 lectures
*Types, Delegates, Generics, Reflection, Iterators
*.NET Memory Management: 1 lecture
*Topics: 4 lectures
*C# 3.0, Threading, Security, MSIL, MSH
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*Each class will begin with a quiz
*not for credit but for knowledge
*but I will collect them and see what you know
*Today’s quiz will be on prerequisites
*OO programming, mainly to do with Java
* If you don’t know Java, but do have OO experience, it’s OK
*talk to me after if you have trouble
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*A Framework in which to run code*A Common Language Runtime (CLR)*runs all programs *C# compiles to Microsoft Intermediate Language*MSIL runs on CLR*Virtual Machine like Java*code written in many languages compiles to MSIL
*A Common Language Specification (CLS)*A Common Type System (CTS)
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Runtime
Operating System
.NET Framework
Common Type
System
Common Language Runtime
Building Blocks (e.g. for Services)
Services: .NET and COM+
SQL Server BizTalk ...
Languages:
C#, Visual Basic, etc
.NET Applications
Enterprise Servers
...Sharepoint ...
Web Services
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Class Loader
MSIL to NativeCompilers (JIT)
CodeManager
GarbageCollector (GC)
Security Engine Debug Engine
Type Checker Exception Manager
Thread Support COM Marshaler
Base Class Library Support
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*A set of common types
*any language that runs in CLR should implement
*no syntax specified
*Languages often define aliases
*For example
*CTS defines System.Int32 – 4 byte integer
*C# defines int as an alias of System.Int32
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