Command'java'not found, but can be installed with:sudoaptinstalldefault-jre# version 2:1.11-72build1, orsudoaptinstallopenjdk-11-jre-headless# version 11.0.14+9-0ubuntu2sudoaptinstallopenjdk-17-jre-headless# version 17.0.2+8-1sudoaptinstallopenjdk-18-jre-headless# version 18~36ea-1sudoap...
Javais a widely used programming language that has become an essential tool for developing and running applications on various platforms. If you are a developer or a system administrator using Ubuntu 20.04, you may need to install Java on your machine to run Java-based applications or develop Ja...
In order to check if Java is already installed on your Ubuntu, open up the terminal and run the command: java -version As you can see above, Java is not installed on our Ubuntu, but the system is suggesting you some packages you can install. If however you get a different output, the...
That's pretty much all there is to installing Java on Ubuntu. If you want, you can set a default version of Java. To do this, type: sudo update-alternatives --config java. You'll then be able to see the version numbers, and if you want to choose one, press the number listed and...
This is the recommended and easiest option. This will install OpenJDK 6 on Ubuntu 12.04 and earlier and on 12.10+ it will install OpenJDK 7. Installing Java withapt-getis easy. First, update the package index: sudo apt-getupdate Then, check if Java is not already installed: ...
JAVA_HOME=/usr/java/jre1.7.0_67 由于ubuntu中可能会有默认的jdk,如openjdk,所以,为了使默认使用的是我们安装的jdk,还要进行如下工作。 执行 update-alternatives --install/usr/bin/java java /usr/java/jre1.7.0_67/bin/java300update-alternatives --install/usr/bin/javac javac /usr/java/jre1.7.0_...
java-version Copy If Java is not currently installed, you’ll see the following output: Output Command 'java' not found, but can be installed with: sudo apt install openjdk-11-jre-headless # version 11.0.11+9-0ubuntu2~20.04, or
OpenJDK 64-Bit Server VM (build 17.0.3+7-Ubuntu-0ubuntu0.22.04.1, mixed mode, sharing) Now you have installed Java 17 Runtime on your Ubuntu 22.04. Install Java JDK 18 Execute the following command to install the default Java JDK, which will also install the JRE from OpenJDK 18. ...
Install OpenJDK 11 on Ubuntu 22.04 To install OpenJDK 11 on Ubuntu 22.04, execute the commands below; copyapt update copyapt install openjdk-11-jdk Confirm the version; copyjava --version copyopenjdk 11.0.15 2022-04-19 OpenJDK Runtime Environment (build 11.0.15+10-Ubuntu-0ubuntu0.22.04.1...
注释:apt install是安装命令,openjdk-11-jdk是要安装的软件包名称,包含完整的Java开发工具包。 3. 验证安装 安装完成后,您需要验证Java是否安装成功。运行以下命令: java-version 1. 注释:java -version显示当前安装的Java版本,如果安装成功,您将看到Java 11的版本信息。