update-java-alternatives updates all alternatives belonging to one run‐
time or development kit for the Java language. A package does provide
these information of it's alternatives in /usr/lib/jvm/..jinfo.
List all installed packages (or just ) providing informa‐
tion to set a bunch of java alternatives. Verbose output shows
each alternative provided by the packages.
Switch all alternatives of registered jre/sdk installations to
Set all alternatives of the registered jre/sdk installation to
the program path provided by the installation.
--jre Limit the actions to alternatives belong to a runtime environ‐
ment, not a development kit.
Limit the actions to alternatives belong to the headless part of
a runtime environment.
Limit the actions to alternatives providing browser plugins.
Display a help message.