I installed openjdk-6-jre from the package manager, then I installed Eclipse, and this was the default JRE.
Now I needed to install, in addition to 6, also Java 7, so I installed openjdk-7-jre from the package manager. However, in Eclipse I still see only JRE 6. Also from the command line I see only java 6:
$ java -version
java version "1.6.0_24"
OpenJDK Runtime Environment (IcedTea6 1.11.5) (6b24-1.11.5-0ubuntu1~12.04.1)
OpenJDK 64-Bit Server VM (build 20.0-b12, mixed mode)
How can I use JRE 7 from Eclipse?
Best Answer
To make your new Java 7 installation the default one run this on shell -
To simply use Java 7 in your project without making it the system default go to
Configure Built Path
>Libraries
>Add Library
>JRE System Library
>Installed JREs
>Add
>Standard VM
>Directory
and select the location where you installed the JVM.Also change the
Properties
>Java Compiler
>Compliance Level
to 1.7Edit:
To know the location of your JVM run -
The output on my system is -
This tells me that
jdk
is in/usr/lib/jvm/