installing java on linux
# install default JDK
sudo apt install default-jdk
# install default JRE
sudo apt install default-jre
# install specific JDK version
sudo apt install openjdk-17-jdk
# install specific JRE version
sudo apt install openjdk-17-jrehow 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 modeinstall openjdk 11 ubuntu
sudo apt-get update && sudo apt-get upgrade
sudo apt-get install default-jdkapt install java 11
sudo apt-get update
sudo apt-get install oracle-java11-installer-localinstall java on linux
// for debian & debian based linux distributions
sudo su or su -
echo "deb http://ppa.launchpad.net/linuxuprising/java/ubuntu focal main" | tee /etc/apt/sources.list.d/linuxuprising-java.list
apt-key adv --keyserver hkp://keyserver.ubuntu.com:80 --recv-keys 73C3DB2A
apt-get update
Ctrl + D or exit
// for Ubuntu, Linux Mint, Pop!_OS or Zorin Os
sudo add-apt-repository ppa:linuxuprising/java
sudo apt update
// Now you can install Oracle JDK 16 on Debian / Ubuntu and Linux distributions based on these:
//Install and make Oracle JDK 16 the default JDK version:
sudo apt install oracle-java16-installer --install-recommends
//Install but don't make Oracle JDK 16 the default JDK version:
sudo apt install oracle-java16-installer --no-install-recommends
//To check which Java version is set as default on your system
java -version or javac -version
//To accept the Oracle Java 16 license automatically
echo oracle-java16-installer shared/accepted-oracle-license-v1-2 select true | sudo /usr/bin/debconf-set-selections
//If that doesn't work, also try this command:
echo oracle-java16-installer shared/accepted-oracle-licence-v1-2 boolean true | sudo /usr/bin/debconf-set-selectionsCopyright © 2021 Codeinu
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