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With Eclipse Helios may run Java desktop Apps [textbook examples] even with JDK 1.2 [message #655235]

Fri, 18 February 2011 18:38

LSE

Messages: 37
Registered: July 2009

Member

With Eclipse Helios may run Java desktop Apps [textbook examples] even with JDK 1.2? Well my textbook dated back in Publisher: Prentice Hall (October 8, 2001)... and includes Adv java 2 examples, JSE & JEE...

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Re: With Eclipse Helios may run Java desktop Apps [textbook examples] even with JDK 1.2 [message #655255 is a reply to message #655235]

Fri, 18 February 2011 19:36

Eric Rizzo

Messages: 3070
Registered: July 2009

Senior Member

On 2/18/11 1:38 PM, LSE wrote:
> With Eclipse Helios may run Java desktop Apps [textbook examples] even
> with JDK 1.2? Well my textbook dated back in Publisher: Prentice Hall
> (October 8, 2001)... and includes Adv java 2 examples, JSE & JEE...

Your question is not totally clear, but if I understand correctly, I can
tell you that Eclipse is capable of compiling and running applications
for any Java version. Eclipse requires 1.5 to run itself, but you can
code and compile against any other JDK that you happen to have installed.

Eric

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Re: With Eclipse Helios may run Java desktop Apps [textbook examples] even with JDK 1.2 [message #655260 is a reply to message #655255]

Fri, 18 February 2011 20:13

LSE

Messages: 37
Registered: July 2009

Member

"you can
code and compile against any other JDK that you happen to have installed"

when you say this you mean that Eclipse includes all the JDKs so, if a program run on JDK 1.1 or 1.2 may still, run it?

if yes, detected JDK automatically or manually I have to say it me to eclipse the JDK [how?]?

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Re: With Eclipse Helios may run Java desktop Apps [textbook examples] even with JDK 1.2 [message #655362 is a reply to message #655260]

Sat, 19 February 2011 22:14

LSE

Messages: 37
Registered: July 2009

Member

please answer asap since I want proceed with my old textbook examples...

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all JDK Versions are inside Eclipse or must installed in PC separately for this? [message #655607 is a reply to message #655235]

Mon, 21 February 2011 22:19

LSE

Messages: 37
Registered: July 2009

Member

all JDK Versions are inside Eclipse or must installed in PC separately for this?

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Re: all JDK Versions are inside Eclipse or must installed in PC separately for this? [message #655617 is a reply to message #655607]

Mon, 21 February 2011 23:57

Russell Bateman

Messages: 3798
Registered: July 2009
Location: Provo, Utah, USA

Senior Member

On 2011.02.21 15:19, LSE wrote:
> all JDK Versions are inside Eclipse or must installed in PC separately
> for this?

I'll take a crack at this.

- Any "old" Java code that you might be using will execute flawlessly
using any JDK/JRE at least as recent as the one for which it was
written. In other words, JRE 1.6 will execute code written back when
Java was at 1.2.

- JDKs are installed separately from Eclipse. If you're trying to
understand the relationship between Eclipse and Java including how to
install and associate a JDK with Eclipse I suggest you peruse and maybe
follow this document I wrote to help people starting out.

http://www.javahotchocolate.com/tutorials/eclipse-summary.ht ml

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you mean without separate install of the JDK, the Eclipse would not work [message #655682 is a reply to message #655617]

Tue, 22 February 2011 09:45

LSE

Messages: 37
Registered: July 2009

Member

you mean without separate install of the JDK, the Eclipse would not work(Java/JSP/Servlets)?

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Re: you mean without separate install of the JDK, the Eclipse would not work [message #655734 is a reply to message #655682]

Tue, 22 February 2011 13:45

Russell Bateman

Messages: 3798
Registered: July 2009
Location: Provo, Utah, USA

Senior Member

On 2011.02.22 2:45, LSE wrote:
> you mean without separate install of the JDK, the Eclipse would not
> work(Java/JSP/Servlets)?

Eclipse is one thing; the Sun JDK is another. If you follow the link I
gave you carefully, you'll have a perfect Eclipse and JDK set-up.

Another good place to start is
http://www.vogella.de/articles/Eclipse/article.html; maybe it's simpler
and better. Try it.

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