JavaVersion-String version+void setDefault()System+void listInstalledJavaVersions()PackageManagement+void removeJavaPackage(String package)ManualInstallation+void removeJavaDirectory(String path) 在这个类图中,JavaVersion类用于设置和管理Java版本,System类用于列出系统中已安装的Java版本,PackageManagement类用于通过包...
So, if you already have another Java version installed, then it’s essential to add the new JDK location in front of the PATH variable. So that when we run java commands, our directory will be searched first and java command will be found and executed. 因此,如果您已经安装了另一个Java版...
Step 1: List Installed Java Versions To see all Java versions installed on your system, use the following command: sudoupdate-alternatives --config java This command displays a list of all available Java installations, similar to the example below: ...
In this guide, you will install various versions of the Java Runtime Environment (JRE) and the Java Developer Kit (JDK) usingapt. You’ll install OpenJDK as well as the official JDK from Oracle. You’ll then select the version you wish to use for your projects. When you’re finished,...
You can have multiple Java installations on one server. You can configure which version is the default for use on the command line by using theupdate-alternativescommand. sudoupdate-alternatives--configjava Copy This is what the output would look like if you’ve installed both versions of Java...
官⽅镜像地址:https://www.debian.org/mirror/list 清华⼤学下载地址:https://mirrors.tuna.tsinghua.edu.cn/debian-cd/10.1.0-live/amd64/iso-hybrid/ Ubuntu简介 Ubuntu(友帮拓、优般图、乌班图)早期是⼀个开源的GNU/Linux操作系统,Ubuntu 是基于Debian GNU/Linux,⽀持x86、amd64(即x64)和ppc架构,...
sun-java6-demo sun-java6-doc sun-java6-source Verify that you have the correct version of java running: java -version To see a list of the java versions that you have installed, you can use the following command (it’s a letter L at the end of the command): ...
# apt 展示 apt list [--installed | --upgradable | --all-versions] # dpkg 展示 dpkg-query -l (2)软件安装 1. apt安装 安装软件前需要更新一下apt管理器 代码语言:javascript 代码运行次数:0 运行 AI代码解释 sudo apt update 安装命令: 代码语言:javascript 代码运行次数:0 运行 AI代码解释 sudo apt...
Debian dependency list for Ubuntu 20.04: openjdk-17-jdk >= 17 imagemagick >= 8:6.9.10 libgtkmm-3.0-1v5 >= 3.24.2 ufw >= 0.36 ubuntu-desktop >= 1.450 libxrandr2 >= 2:1.5.2 libxtst6 >= 2:1.2.3 libxm4 >= 2.3.8 util-linux >=...
Fedora is distributing both compiled and bytecode versions of eclipse and some libraries https://www.redhat.com/archives/fedora-devel-list/2005-January/msg00652.html indicates that compiled Java is a significant win Gcj upstream considers current gcj to go head to head against the best JITs,...