how to upgrade java 8 to 11 in ubuntu
sudo apt-get install openjdk-11-jdk $ sudo update-alternatives --config java There are 2 choices for the alternative java (providing /usr/bin/java). Selection Path Priority Status * 0 /usr/lib/jvm/java-9-openjdk-amd64/bin/java 1500 auto mode 1 /usr/lib/jvm/java-8-openjdk-amd64/jre/bin/java 1500 manual mode 2 /usr/lib/jvm/java-9-openjdk-amd64/bin/java 1500 manual mode