This is a summary of how to install multiple JDKs (Java Development Kits) on Ubuntu 18.04 LTS.
sudo add-apt-repository ppa: linuxuprising / java command to add the repository.sudo apt update command to update the package list.sudo apt install default-jre command to install the default JRE. sudo apt install oracle-java * -installer command to install the JDK. 8 for Java 8) in*.Execute the sudo apt install oracle-java * -set-default command to set the JDK environment.
* In *, enter the JDK version ( 8 for Java 8) to be set as the default.
Run the sudo update-alternatives --config java command and select the default java command.
Run the sudo update-alternatives --config javac command and select the default javac command.
Run the sudo update-alternatives --config javaws command and select the default javaws command.
Execute the nano ~ / .bashrc command and add the following.
JAVA_HOME=$(readlink -f /usr/bin/javac | sed "s:/bin/javac::")
export JAVA_HOME
PATH=$PATH:$JAVA_HOME/bin
export PATH
Execute the source ~ / .bashrc command.
Execute the java -version command, and if the version of JDK to be set as the default is displayed, it is successful.
Recommended Posts