I just installed java according to this article, and 'java -version' displays
java version "1.7.0_07"
Java(TM) SE Runtime Environment (build 1.7.0_07-b10)
Java HotSpot(TM) 64-Bit Server VM (build 23.3-b01, mixed mode)
'update-alternatives --config java' returns this:
There are 2 choices for the alternative java (providing /usr/bin/java).
Selection Path Priority Status
------------------------------------------------------------
0 /usr/bin/gij-4.6 1046 auto mode
1 /usr/bin/gij-4.6 1046 manual mode
* 2 /usr/local/java/jdk1.7.0_07/bin/java 1 manual mode
Press enter to keep the current choice[*], or type selection number:
with update-alternatives --config javac (or javaws) returning similarly.
however java isn't listed in the default applications menu when I click on a .jar file and go to "open with application".
I tried to install java this way, and on the update-alternatives part of the command returned me:
/etc/alternatives/[java,javac,javaws] is dangling, it will be updated with best choice
I just confirmed that I can use java, as 'java -jar file.jar' does work.
Just figured that I'd mention it, don't know why I didn't before, but when I right click on a .jar file, java 7 run-time isn't even listed there, it seems that the file-manager isn't recognizing it as a program, but it is there, and it does work...