www.nlaak.ru

update-alternatives --install /usr/bin/java java /opt/jdk/jdk1.8.0_05/bin/java 100

update-alternatives --install /usr/bin/javac javac /opt/jdk/jdk1.8.0_05/bin/javac 100

update-alternatives --display java

update-alternatives --display javac

java -version

java install