Confused : whats the difference between Java and J2EE?


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Hi,
Im just confused.. are JAVA, J2EE and JSP just the same? What do i need if i will run java on a web site ?
Thanks!

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java exception handling whats the difference between the two styles pasted here?
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the first one is from a book which looks very cryptic/complex to me ,second one is the way i have seen people around me write including me :) ,also for the first style eclipse is showing that the catch "IOException openx" block is handing the exception for part where read and write is happening viz


while ((len = is.read(buf)) >= 0)
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.Does it mean catch "IOException iox" is useless code?


first style.


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whats the difference between the 2 below declarations?


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Hi
I have very solid OOP programming concepts and have worked in C/C++ three years ago, and am in a very good form of PHP programming currently. Fully understand XML, API and Web Services etc.
Though I never tried JAVA. I want to learn J2EE 1.4. As for PHP I started by downloading PHP, Apache and MySQL bundled in XAMP and then started with a PHP book which had code examples that I used to write and test in the browser. I was wondering if there is any such step by step method to start working with J2EE?
I am very good programmer just need to get started with J2EE which is currently a big
Confused : whats the difference between Java and J2EE?
Java

Hi,
Im just confused.. are JAVA, J2EE and JSP just the same? What do i need if i will run java on a web site ?
Thanks!

EJB help, very confused with gui's and JFrames with J2EE
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Hi im in need of some help with a J2EE application im working on. I need to develop a JFrame front-end GUI client that will talk to the server, however i am not sure how to use JFrame to invoke methods on the server. This is mainly because im struggling to understand how I can call a method on the client side that will call a method on the server side when it appears to me that the client doesn't have a handle on the server-side (If that makes sense?)
I have crawled the web for some examples(including sun) but I still cannot find a tutorial.
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class Test{ public static void main(String[] args){ float f1=3.2f; float f2=6.5f; if(f1==3.2){ System.out.println("same"); }else{ System.out.println("different"); } if(f2==6.5){ System.out.println("same"); }else{ System.out.println("different"); } } } out put:differentsameWhy the output is like that...I expected same as the result in first caseT

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