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[Octave-bug-tracker] [bug #60058] Feature request: function javaversion(

From: Markus Mützel
Subject: [Octave-bug-tracker] [bug #60058] Feature request: function javaversion()
Date: Mon, 15 Feb 2021 12:45:02 -0500 (EST)
User-agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/88.0.4324.150 Safari/537.36 Edg/88.0.705.68 
Follow-up Comment #5, bug #60058 (project octave):

Well, you'd need to read the documentation for `compare_version` first.
If I use it according to its specification it works fine for me:

>> version -java
ans = Java 11.0.9.1+1-Ubuntu-0ubuntu1.20.10 with Ubuntu OpenJDK 64-Bit Server
VM mixed mode, sharing
>> java_ver = regexp(version("-java"), 'Java ([0-9\.]*)', "tokens");
>> compare_versions (java_ver{1}{1}, "11.0.9.1", "<=")
ans = 1
>> compare_versions (java_ver{1}{1}, "11.0.9.01", "<=")
ans = 1


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