Here you will find 3 sets of videos on C-Sharp. One set contains 15 online videos, and the presenter is Dr. Joe Hummel. The videos in this collection are entitled Modern Software Development: Architecting Solutions in C#. Another collection consists of 10 videos on Microsoft’s Chief Architect for C-Sharp, Anders Hejlsberg. There is also a collection of 26 hours of videos by Bob Tabor on C-Sharp.

History: C# is an object-oriented programming language. Anders Hejlsberg is the chief architect for C#. C-Sharp has an object-oriented syntax that was derived from C++. The most recent variant of the language is 3.0, and it was published in conjunction with the In 2007. The next proposed variation, 4.0, is in development.

In 1999, when Anders Hejlsberg formed a team to create the language, they originally planned to call it COOL, which stood for C-like Object Oriented Language. However, there were copyright problems with that name, and it was renamed C#. In music, C-Sharp means a half of a pitch higher, and, in programming, C-Sharp indicates that it eveolved out of C++.

According to Anders Hejslberg, it was the problems in other major programming languages, like Java, Delphi, and Smalltalk that guided the design of the Common Language Runtime (CLR), and the design of the CLR, in turn guided the design of C-Sharp.

Versions:

  • C# 1.0 – introduced 2000 / released January 2002
  • C# 1.2 – released April 2003
  • C# 2.0 – released November 2005
  • C# 3.0 – released November 2007
  • C# 4.0 – in development



Design Goals:

  • C# is supposed to be a modern, general-purpose, object-oriented programming language.

    • The language should provide support for:

    • Strong type checking
    • Array bounds checking
    • Detection of attempts to use uninitialized variables
    • Software robustness
    • Durability
    • Programmer productivity
    • Automatic garbage collection
  • The language is for developing software components suitable for deployment in distributed environments.
  • The most important features are programmer portability and source code portability, more than ever for those programmers already familiar with C and C++.
  • Internationalization is an important feature.
  • C# is intended to be suitable for writing applications for



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Key Features of C#

  • In C#, memory address pointers can only be used within blocks specifically marked as unsafe, and programs with unsafe code need appropriate permissions to run.
  • Managed memory is automatically garbage collected and cannot be explicitly freed.
  • There are no global functions or variables. All methods and members must be declared within classes. Static members of public classes can substitute for global variables and functions.
  • Local variables cannot shadow variables of the enclosing block, unlike C and C++.
  • Multiple inheritance is not supported, although a class can implement any number of interfaces.
  • C# is more typesafe than C++.



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