set default java version
- by Dónal
I have been using Java 6 on Ubuntu 11.10, but now I want to update to version 7. I've installed version 7 via PPA as described here. If I run
sudo update-alternatives --config java
I get the following output:
There are 2 choices for the alternative java (providing /usr/bin/java).
Selection Path Priority Status
------------------------------------------------------------
0 /usr/lib/jvm/java-7-oracle/jre/bin/java 64 auto mode
1 /usr/lib/jvm/java-6-sun/jre/bin/java 63 manual mode
* 2 /usr/lib/jvm/java-7-oracle/jre/bin/java 64 manual mode
Similarly, if I run:
sudo update-alternatives --config javac
I get the output:
Selection Path Priority Status
------------------------------------------------------------
0 /usr/lib/jvm/java-7-oracle/bin/javac 64 auto mode
1 /usr/lib/jvm/java-6-sun/bin/javac 63 manual mode
* 2 /usr/lib/jvm/java-7-oracle/bin/javac 64 manual mode
So it looks like version 7 is already the default. But if I run either
java -version
or
javac -version
The output indicates that version 6 is still the default. How can I set the default to version 7?