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Date:	Fri, 10 Oct 2003 08:45:30 PDT7
From:	"Steven Levine" <steve53@earthlink.net >
Reply-To:	scoug-help@scoug.com
To:	scoug-help@scoug.com
Subject:	SCOUG-Help: Java - FAQ, HowTo, OS/2 Java for Dummies?

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In <3F86CD1A.3A60@peterskye.com>, on 10/10/03
at 08:13 AM, Peter Skye said:

>Is the runtime engine the same in all versions (except for bug fixes, of
>course),

The engine is the the same and TTBOMK the JVM is the same.

or has Sun added to the "instruction set" which would make it >impossible
for older runtime engines to execute newer Java code using >these new
instructions?

What prevents older JVM from running newer apps is usually the libraries.
The libraries that ship as part of the JRE are the major distinguishing
factor between older and newer versions. Often, as with swing and
security, you can just add the library to the older JRE.

>I use Netscape 4.61 and 2.02 very occasionally for web browsing, and I'm
>using Java 1.1.8 (latest fix). Do you mean that Netscape 4.61 & 2.02
>won't work properly with a Java newer than 1.1.8?

I'm not sure about 2.02. It probably only runs with the ancient Java
1.02. Netscape 4.61 has built in support for v1.1.8 and can use a plugin
to run Java 1.3.1. I don't recall if Innotek or Golden Code have supplied
plugins for NS 4.61. You'll have to check the release notes.

HTH,

Steven

--
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"Steven Levine" MR2/ICE 2.37 #10183 Warp4/FP15/14.093c_W4
www.scoug.com irc.webbnet.info irc.fyrelizard.org #scoug (Wed 7pm PST)
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