Java HotSpot(TM) 64-Bit Server VM (build 17.0.1+12-LTS-39, mixed mode, sharing) 3、设置默认Java版本 如果系统上安装了多个Java版本,则需要使用如下命令设置默认版本。 # alternatives --config java 输出以下内容 There are 2 programs which provide 'java'.
After completion, type below to check the Java version. java --version You should see Java 17 in the prompt. You can also check out the Java executable path via the below command: which java Java 17 after install – on Ubuntu 22.04 LTS Jammy Jellyfish Now, if you use Arch Linux or i...
sudo update-alternatives --install "/usr/bin/java" "java" "/usr/lib/jvm/jdk-17/bin/java" 1 4. Set default Java on Ubuntu 20.04/22.04 (optional) If you don’t want to set Oracle Java 17 as your system-wide default Java then you can skip this step. Otherwise, run the given comma...
This package is set as a recommended package for the Oracle Java 17 installer, that's why installingoracle-java17-installerwith--install-recommendsalso installsoracle-java17-set-default. To check which Java version is set as default on your system, you could runjava -versionand / orjavac -...
这些命主要是围绕着查看进程、确认进程存活情况及杀掉进程等操作1.查看进程ps -ef|grep java示例含义：...
步骤一:查看系统中是否安装了Java 首先需要确定系统中是否已经安装了Java。可以通过以下命令进行检查: java-version 1. 这条命令会显示Java的版本信息,如果系统中已经安装了Java,则会显示相应的版本号,如果显示“command not found”,则说明系统中尚未安装Java。
sudoyum updatesudoyuminstalljava-11-openjdk-devel 1. 2. 安装过程可能需要一些时间,具体取决于系统的性能和网络连接。安装完成后,再次运行java -version命令,应该能够正确显示Java的版本信息。 方法二:设置环境变量 如果Java已正确安装,但仍然遇到"java command not found"错误,我们需要检查并设置JAVA_HOME和PATH两...
Java 17 version released by Oracle comes with new features and improvements to the Java programming language. If you're running Amazon Linux 2023 and need to install Java 17, then Corretto is the best way to get it. Here in this quick guide, we take you
$ rpm -q python //查找检查系统是否安装了python</p> <p>python-1.5.2-27 或者:$rpm -qa| grep python //这是两个命令的结合 rpm的其他用法: rpm -qa (列出所有安装了的包) rpm -e package (删除某个包) rpm -qi package (查询某个包) rpm -qf command (根据程序查询包的名字) rpm -ql pac...
To install a specific version, use the following command: sudo yum install java-[version]-openjdk-develCopy Replace[version]with the actual version number. For example: sudo yum install java-17-openjdk-develCopy How to Set Default Java Version ...