hello i am studying computer science and i have some experience with C and C++ and a little bit asp with vb.net should i continue with c++ and learn c# or learn java? is there any difference between java and c# and which one is more valuable.If i decide to learn java which book would you prefer and where to start it.I am waiting for your replies and advices thank you.

Nice to see you're so enthusiastic about learning.

A couple of clarifications:
Java is a technology(framework) and a language
C# is just a language over the .Net framework

Since you are already familiar with VB.net, you should already be somewhat familiar with the .Net framework, therefore, by taking a C# course, you would be consolidating your knowlege of the .Net framework, by going over the same framework APIs again, while learning a new language

On the other hand, by taking Java, you would be learning a new framework, a new technology, and a new language. Many of the features of the Java language are shared with C#, so by learning Java, you will be learning C#.

If I were in your position, I'd take java while applying the lessons learned by practicing them both in C# and Java.

Best of luck!

thanks

Hi,
Thinking in Java is a free good book to start...
http://www.mindview.net/Books/TIJ/

Cheers.

jomet.
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Once you start a working on something,
dont be afraid of failure and dont abandon it.
People who work sincerely are the happiest.

Yes you can continue with c++ or c# also as it depends on you to what to choose and in which part you are more interested in.
We will come to your 2nd question about difference between java and c# , so yes there are some points that distinguish java and c#.
It will be great if you start over java, java is much better than c#,C++ etc, there are many books available in the market any you can buy and many online tutorial can help to learn java as i have also gone through the same learning phase and i was following this The Best Way To Go About Learning Java!
so all the best .