Ubuntu 21.10にJava(OpenJDK)18をインストールする
環境
# cat /etc/lsb-release DISTRIB_ID=Ubuntu DISTRIB_RELEASE=21.10 DISTRIB_CODENAME=impish DISTRIB_DESCRIPTION="Ubuntu 21.10"
OpenJDK18のインストール方法
1.aptコマンドでインストール可能なOpenJDKを確認します
# sudo apt search "^openjdk.*jdk$" Sorting... Done Full Text Search... Done openjdk-11-jdk/impish-updates,impish-security 11.0.14.1+1-0ubuntu1~21.10 amd64 OpenJDK Development Kit (JDK) openjdk-16-jdk/impish 16.0.2+7-2 amd64 OpenJDK Development Kit (JDK) openjdk-17-jdk/impish-updates,impish-security 17.0.2+8-1~22.10 amd64 OpenJDK Development Kit (JDK) openjdk-18-jdk/impish 18~15ea-4 amd64 OpenJDK Development Kit (JDK) openjdk-8-jdk/impish-updates,impish-security 8u312-b07-0ubuntu1~21.10 amd64 OpenJDK Development Kit (JDK)
2.openjdk-18-jdkをインストールする
# sudo apt-get update # sudo apt install -y openjdk-18-jdk
3.javaバージョンを確認します
# java --version openjdk 18-ea 2022-03-15 OpenJDK Runtime Environment (build 18-ea+15-Ubuntu-4) OpenJDK 64-Bit Server VM (build 18-ea+15-Ubuntu-4, mixed mode, sharing)