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Java or .Net for Windows Desktop Apps?

  Asked By: Pedro    Date: Apr 20    Category: Java    Views: 2959
  

At the end of the day only Java and .Net were left standing. Still we can not
decide.

Could you please comment on these opinions and give us reasons to go for Java?,
here they are:

- Java apps are slow in the desktop
- Java apps use a non-standard GUI in Windows
- Java apps are not compiled to static code, so they are slower than C/C++ or at
least not faster than VB.
- Java is only good for the server side or the Enterprise side of Computing

This are general opinions, we've heard time and time again, still we have no
evidence that these opinions are true.

.Net supposedly does away with most of those difficulties but it eliminates or
makes it very difficult to target many OSes plus we believe is not yet mature.

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3 Answers Found

 
Answer #1    Answered By: Al Allen     Answered On: Apr 20

> I have a small software company, and we have been trying to decide on a
> set of tools for our next product.
>
> At the end  of the day  only Java and .Net were left  standing. Still we
> can not decide.
>
> Could you please comment  on these opinions and give  us reasons to go
> for Java?, here they are:
>
> - Java apps  are slow  in the desktop

Any application can be slow or fast on the desktop, depending on how
well the application is designed. Saying that Java is slow on the
desktop is just not necessarily true. Java applications will take more
memory than a comparable C or C++ application because the C or C++
application will use a lot of the OS features which Java will implement
in a platform-independent fashion.

> - Java apps use a non-standard GUI in Windows

The Windows Look and Feel included with Java Swing is pretty good  at
this point, but it is still not exactly like the native interface. You
might also want to take a look at SWT from the Eclipse project
( http://www.eclipse.org/ ). Supposedly it is a lot closer to the
Windows look and feel.

> - Java apps are not compiled  to static  code, so they are slower than
> C/C++ or at least not faster  than VB.

Speed of an application consists of many factors, and often the actual
speed of the program executing is not the limiting factor. A lot of
applications deal with bandwidth issues, poor programming and other
problems which degrade performance. In addition, the Java Virtual
Machine has been improving steadily over the past few years and now does
quite a few optimizations which improve performance. Ultimately C/C++
will be faster than Java, but Java's other benefits (portability,
elegance, ease-of-maintenance, etc.) outweigh the speed differences in
many cases.

> - Java is only good for the server  side or the Enterprise side  of
> Computing

Java can be used in many places: server-side, client-side, cell phones,
etc. I have successfully deployed applications on both the server-side
and the client-side. It is easier to deploy on the server-side, since
that is where the focus has been recently, but client-side is improving
all the time.

> This are general  opinions, we've heard time  and time again, still we
> have no evidence that these opinions are true.

Most of the time the opinions are probably coming from people who have
limited experience or no experience with Java. Rather than believe them
you should write some test applications yourself and see the results.

> .Net supposedly does away with most of those difficulties but it
> eliminates or makes it very difficult to target  many OSes plus we
> believe is not yet mature.

I would agree with you there, but then you have to ask yourself if
targeting multiple OSes is really that important to you.

 
Answer #2    Answered By: Viola Hanson     Answered On: Apr 20

I think I can show some my opinions, which have
concern with your comments as follows:

1. java  apps are slow  in the desktop

---> Yes, I totally agree with this comment.

2. Java apps  use a non-standard GUI in Windows

---> Yes but not important because GUI in Java is
also beautyful when you integrate with LookAndFeel
technology.

3. Java apps are not compiled  to static  code, so they
> are slower than C/C++ or at least not faster  than
> VB.

---> Yes, I totally agree with this comment.

- Java is only good  for the server  side or the
> Enterprise side  of Computing

---> No, I don't think so, because java is slower
than C/C++ and so Java is really good with products
that need independent platform.

Conclusion:
In my opinion, when we build products expecially
server side, we should build its core with C/C++
language, only use Java language when we need to build
independent platform or Web application in client side
and we will use JNI so that they can connect to our
Core that was written by C++. I think that every
product will has high performance (calculate by
milisecond) and independent platform feature.

 
Answer #3    Answered By: Payappar Pala     Answered On: May 24

To do more about Java Grphics application development you can watch you tube video http://www.youtube.com/watch?v=8oht2RkkJRk

 
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