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I've updated to JDK 9, but some users of my apps report that application does not start up (they have Java 7).

How can I compile my code the way it will be compatible with Java 7? I am using Eclipse.

EDIT : It's not a duplicate. The question you are referring to does NOT answer my question. I can edit environments, but I don't think that using JDK 9.0.1 as JDK 1.7 would actually compile under 1.7.

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Jast Redd
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  • Maybe it is. But I've searched in google; then searched before I typed in question title; and another time when I actually did type it. And I didn't see this question there. – Jast Redd Feb 22 '18 at 16:41
  • Actually it does answer your question, if you read about the Java compliance level. You can have Java 9 installed but compile the code to be compliant under java 7. – bated Feb 23 '18 at 00:14

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