OpenJDK Runtime Environment (build 11.0.15+10-Ubuntu-0ubuntu0.22.04.1) OpenJDK 64-Bit Server VM (build 11.0.15+10-Ubuntu-0ubuntu0.22.04.1, mixed mode, sharing) Now you have installed Java 11 Runtime on your Ubuntu 22.04. Install Java Development Kit If need Java Development Kit to compil...
if you have multiple Java versions installed on your system, setting the JAVA_HOME variable to the desired version can ensure that the correct Java version is used when running an application.
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。 4. 设置环境变量 (可选) 虽然Java可以直接使用,但设置环境变量会让您的系统更易用,特别是在需要多个Java版本时。输入以下命令配置JAVA_HOME变量: echo"export JAVA_HOME=/usr/lib/jvm/java-...
The JDK is usually only necessary if you are going to compile Java programs or if your software specifically requires it in addition to Java. Since the JDK contains the JRE, there are no disadvantages if you install the JDK instead of the JRE, except for the larger file size. All other ...
在Ubuntu操作系统上安装Java时,执行sudo apt install default-jdk会将Java安装到系统的指定目录。本文将会详细记录处理Ubuntu中Java安装相关问题的整个过程。 环境准备 前置依赖安装 在进行Java的安装之前,需要确保系统中已经安装了必要的依赖。通常情况下,Ubuntu会默认安装apt工具来管理软件包。
How to Install Java 8 on Ubuntu? i) At first, we will download the package file from the official website. http://www.oracle.com/technet...The download package is different for 64 bit and 32-bit versions. ii) We will need some superuser privileges to install JDK. So we will use ...
java-version Copy If Java is not currently installed, you’ll get the following output: Output 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-...
CLASSPATH=.:/usr/java/jre1.7.0_67/lib 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...
Then, depending on the version you want to install, execute one of the following commands: Oracle JDK 6 This is an old version but still in use. sudo apt-getinstalloracle-java6-installer Oracle JDK 7 This is the latest stable version. ...
java --versionCopy openjdk 18-ea 2022-03-22 OpenJDK Runtime Environment (build 18-ea+36-Ubuntu-1) OpenJDK 64-Bit Server VM (build 18-ea+36-Ubuntu-1, mixed mode, sharing)Copy How to Set Default Java Version on Ubuntu 22.04