--- title: Setting Java and Switching Version on Ubuntu tags: note, Java --- # Setting Java and Switching Version on Ubuntu 1. Search for openJDK ```bash= apt-cache search openjdk ``` 2. Choose desired version and install (`hdeadless` for non-gui Java applications) ```bash= apt-get install openjdk-8-jdk-headless ``` 2. Check if successful ```bash= java -version ``` 3. Repeat above step to install other java version 5. List valid versions ```bash= update-java-alternatives --list ``` 4. Set to version ```bash= update-java-alternatives --set /path/to/java ``` 5. Check if successful ```bash= java -version ```