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I am trying to install the FreeMind app (i know x2) on Ubuntu 9.10 but unsure I have Java. So, how can I verify that it is on my system?

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migrated from stackoverflow.com Apr 27 '10 at 15:41

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=> superuser.com –  T.J. Crowder Apr 27 '10 at 15:37
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2 Answers

up vote 10 down vote accepted

Just type in "java -version" in a terminal window and it'll tell you what version, if any, you've got installed.

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If this succeeds but the program still doesn't work, make sure you are using the needed Java using update-java-alternatives. The package sun-java6-jre will work for most everything. –  yuvi Apr 27 '10 at 15:40
    
Entered and received the following. java version "1.6.0_0" OpenJDK Runtime Environment (IcedTea6 1.6.1) (6b16-1.6.1-3ubuntu3) OpenJDK Client VM (build 14.0-b16, mixed mode, sharing) Sweet! Thanks –  damx Apr 27 '10 at 16:05
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# java -version
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how did the 7 votes difference occur with 2 identical answers? :) –  Bozho Apr 27 '10 at 15:50
    
Prob since he answered first. But I still appreciate it. Thanks Bozho! –  damx Apr 27 '10 at 16:07
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