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"Backward compatible" usually means the other way, but if your question
is, say, can a class compiled under JDK 1.4 run under 1.5? The answer is
yes. Up until 1.5, the answer was pretty much the same in reverse, but you
will get an exception trying to run a class compiled with 1.5 or JSE 6.0
under, say, 1.4.


Joe Sam

Joe Sam Shirah - http://www.conceptgo.com
conceptGO - Consulting/Development/Outsourcing
Java Filter Forum: http://www.ibm.com/developerworks/java/
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----- Original Message ----- From: "Lim Hock-Chai" <Lim.Hock-Chai@xxxxxxxxxxxxxxx>
To: "Java Programming on and around the iSeries / AS400"
<java400-l@xxxxxxxxxxxx>
Sent: Friday, March 20, 2009 11:06 AM
Subject: is class file backward compatible


can a class that created using a lower version of java compiler run on a
higher version of JVM?


--


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