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The biggest difference between Java and .NET is the basic philosophy behind the languages. Java is a programming language designed to be run on many different platforms, and so uses a common language which has to be compiled and run on different platforms (eg. windows, mac and linux). Microsoft, with their offering of .NET, takes on a different approach, by allowing you to program in any language you choose, but has compilers for many different languages that generates a platform specific code (i.e. Microsoft or Windows). Therefore, Java can be used to write programs for many different operating systems, and .NET can be used to make any programming language into a Windows program. This is all based on the original design goals of the programming language, and has both advantages and disadvantages over each other. For example, .NET would be good for integrating legacy code from different languages into a working program, when you don't want to re-write each piece of code into the same programming language. Both .NET and Java are otherwise object-oriented programming languages, with their obvious syntax differences.
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Guest
answered 8 months ago
Guest
answered 8 months ago
Architecture wise the .NET byte codes gets transformed into a intermediate
language and cached as native code before execution. All most Java2
programming is J2ME specific, but I don't think the Java2 VM Sun provides
for Windows does, one of our Java2 programmers told me that IBM has a
Just-In-Time VM for Win32 that does do this, but it's commerical software
and cost $$$ to license. The result of this is that .NET apps run faster
than Java2 apps on Windows with the default Java2 VM provided by Sun.
Also, Microsoft intermediate language is opened for language developers to
build on (it's actually an Assembly Langauge that you can write in if you'd
like), so C#, VB.NET, COBOL.NET, J#, etc.. All are compiled into MIL
(Microsoft Intermediate Language) if you wanted to create Pearl.NET you
could.
The .NET VM (aka Common Language Runtime) was built primarly with the Win32
API in mind and is closely knit to the Windows platform.
Getting past this the .NET class libraries provide a bit more functionality
than the class libraries provided by Sun (not much, just a bit though). This
is most just utility items (e.g. In .NET if you want to convert from one
data type to another their's a static Convert class that works like a magic
box) there are things missing in .NET though (no Vector, but you can make
one pretty easy)
The primary advantage of .NET (comparing the C# language here to Java2) is
that .NET has Visual Studio.NET (so far I've seen no other IDE that can
match VS.NET, yes I've tried WebSphere, Eclipse, Borland, Sun One, they all
fall short in some areas). The other advantage is ASP.NET which has stolen
the best concepts of JSP, PHP, ColdFusion, and borrowed from classic ASP.
ASP.NET is killer for web apps. (Although the Sun One studio for web
development is good enough that I probably wouldn't switch to .NET just for
ASP.NET at this point)
Java's primary advantage is that you have your choice of third-party tools
(third-party IDE, third-party application server, third-party web server,
etc...) it doesn't bind you to a specific platform and it runs everywhere.
If you're doing Windows development use C# and .NET, if you're app has a
chance to benefit from running on some other platform use J2EE.
language and cached as native code before execution. All most Java2
programming is J2ME specific, but I don't think the Java2 VM Sun provides
for Windows does, one of our Java2 programmers told me that IBM has a
Just-In-Time VM for Win32 that does do this, but it's commerical software
and cost $$$ to license. The result of this is that .NET apps run faster
than Java2 apps on Windows with the default Java2 VM provided by Sun.
Also, Microsoft intermediate language is opened for language developers to
build on (it's actually an Assembly Langauge that you can write in if you'd
like), so C#, VB.NET, COBOL.NET, J#, etc.. All are compiled into MIL
(Microsoft Intermediate Language) if you wanted to create Pearl.NET you
could.
The .NET VM (aka Common Language Runtime) was built primarly with the Win32
API in mind and is closely knit to the Windows platform.
Getting past this the .NET class libraries provide a bit more functionality
than the class libraries provided by Sun (not much, just a bit though). This
is most just utility items (e.g. In .NET if you want to convert from one
data type to another their's a static Convert class that works like a magic
box) there are things missing in .NET though (no Vector, but you can make
one pretty easy)
The primary advantage of .NET (comparing the C# language here to Java2) is
that .NET has Visual Studio.NET (so far I've seen no other IDE that can
match VS.NET, yes I've tried WebSphere, Eclipse, Borland, Sun One, they all
fall short in some areas). The other advantage is ASP.NET which has stolen
the best concepts of JSP, PHP, ColdFusion, and borrowed from classic ASP.
ASP.NET is killer for web apps. (Although the Sun One studio for web
development is good enough that I probably wouldn't switch to .NET just for
ASP.NET at this point)
Java's primary advantage is that you have your choice of third-party tools
(third-party IDE, third-party application server, third-party web server,
etc...) it doesn't bind you to a specific platform and it runs everywhere.
If you're doing Windows development use C# and .NET, if you're app has a
chance to benefit from running on some other platform use J2EE.
0
0
Guest
answered 7 months ago
Simply we can say that .net is framework where we can use different types of language, whereas java is a programming language.
Architecture wise the .NET byte codes gets transformed into a intermediate
language and cached as native code before execution. All most Java2
programming is J2ME specific, but I don't think the Java2 VM Sun provides
for Windows does, one of our Java2 programmers told me that IBM has a
Just-In-Time VM for Win32 that does do this, but it's commerical software
and cost $$$ to license. The result of this is that .NET apps run faster
than Java2 apps on Windows with the default Java2 VM provided by S
language and cached as native code before execution. All most Java2
programming is J2ME specific, but I don't think the Java2 VM Sun provides
for Windows does, one of our Java2 programmers told me that IBM has a
Just-In-Time VM for Win32 that does do this, but it's commerical software
and cost $$$ to license. The result of this is that .NET apps run faster
than Java2 apps on Windows with the default Java2 VM provided by S
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