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发信人: Junhot (倚浩), 信区: Visual
标 题: C# and its Features
发信站: 荔园晨风BBS站 (Wed Jul 11 23:33:20 2001), 转信
G.Gnana Arun Ganesh 6/9/2001 Beginner
1. C# is a simple ,modern,object oriented language derived from C++ and Java.
2. It aims to combine the high productivity of Visual Basic and the raw power
of C++.
3. It is a part of Microsoft Visual Studio7.0 .
4. Visual studio supports Vb,VC++,C++,Vbscript,Jscript.All of these languages
provide access to the Microsft .NET platform.
5. .NET includes a Common Execution engine and a rich class library.
6. Microsofts JVM eqiv is Common language run time(CLR).
7. CLR accommadates more than one languages such as C#,VB.NET,Jscript,ASP.NET,
C++.
8. Source code --->Intermediate Language code(IL) ---> (JIT Compiler) Native
code.
9. The classes and data types are common to all of the .NET languages.
10. We may develop Console application,Windows application,Web application
using C#.
11. In C# microsoft has taken care of C++ problems such as Memory management,
pointers etc.
12.It support garbage collection, automatic memory management and a lot.
MAIN FEATURES OF C#
1.SIMPLE
1. Pointers are missing in C#.
2. Unsafe operations such as direct memory manipulation are not allowed.
3. In C# there is no usage of "::" or "->" operators.
4. Since it`s on .NET, it inherits the features of automatic memory
management and garbage collection.
5. Varying ranges of the primitive types like Integer,Floats etc.
6. Integer values of 0 and 1 are no longer accepted as boolean values.
Boolean values are pure true or false values in C# so no more errors
of "="operator and "=="operator.
"==" is used for comparison operation and "=" is used for assignment
operation.
2.MODERN
1. C# has been based according to the current trend and is very powerful and
simple for building interoperable, scable, robust applications.
2. C# includes built in support to turn any component into a web service that
can be invoked over the internet from any application runing on any
platform.
3.OBJECT ORIENTED
1. C# supports Data Encapsulation, inheritance,polymorphism, interfaces.
2. (int,float, double) are not objects in java but C# has introduces
structures(structs) which enable the primitive types to become objects
int i=1;
String a=i Tostring(); //conversion (or) Boxing
4. TYPE SAFE
1. In C# we cannot perform unsafe casts like convert double to a boolean.
1. Value types (priitive types) are initialized to zeros and reference
types (objects and classes are initialized to null by the compiler
automatically.
3. arrays are zero base indexed and are bound checked.
4. Overflow of types can be checked.
5. INTEROPERABILITY
1. C# includes native support for the COM and windows based applications.
2. Allowing restriced use of native pointers.
3. Users no longer have to explicityly implement the unknown and other COM
interfacers, those features are built in.
4. C# allows the users to use pointers as unsafe code blocks to manipulate
your old code.
5. Components from VB NET and other managed code languages and directlyt be
used in C#.
6.SCALABLE AND UPDATEABLE
1. .NET has introduced assemblies which are self describing by means of
their manifest. manifest establishes the assembly identity, version,
culture and digital signature etc. Assemblies need not to be register
anywhere.
2. To scale our application we delete the old files and updating them with
new ones. No registering of dynamic linking library.
3. Updating software components is an error prone task. Revisions made to
the code. can effect the existing program C# support versioning in the
language. Native support for interfaces and method overriding enable
complex frame works to be developed and evolved over time.
CONCLUSION
C# is a modern, type safe programming language, object oriented language
that enables programmers to quickly and easily build solutions for
the microsoft .NET platform
--
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