OpenJDK Runtime Environment(build11.0.14+9-Ubuntu-0ubuntu2)OpenJDK64-Bit Server VM(build11.0.14+9-Ubuntu-0ubuntu2, mixed mode, sharing) Copy You may need the JDK in addition to the JRE in order to compile and run some specific Java-based software. To install the JDK, execute the foll...
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-...
Once the installation is completed you can verify the Java version using the following command. java -version You will receive an output similar to the one below. openjdk version "11.0.15" 2022-04-19 OpenJDK Runtime Environment (build 11.0.15+10-Ubuntu-0ubuntu0.22.04.1) OpenJDK 64-Bit Se...
Setting the JAVA_HOME variable is important for development environments or when running applications that require a specific Java version. For example, 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...
The easiest option for installing Java is using the version packaged with Ubuntu. Specifically, this will install OpenJDK 8, the latest and recommended version. First, update the package index. sudo apt-get update Next, install Java. Specifically, this command will install the Java Runtime Envir...
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) OpenJDK 64-Bit Server VM (build...
OpenJDK Runtime Environment (build 11.0.11+9-Ubuntu-0ubuntu2.20.04) OpenJDK 64-Bit Server VM (build 11.0.11+9-Ubuntu-0ubuntu2.20.04, mixed mode, sharing)) You may need the Java Development Kit (JDK) in addition to the JRE in order to compile and run some specific Java-based software...
update-java-alternatives -l This should show you a list of all the java alternatives you have installed. java-gcj is the free version of Java from the GNU project and comes installed by default with Ubuntu so you should see it. To switch to a different version, use the following command...
Ubuntu 安装Java JDK 我的安装环境是18.04,以安装JDK8为例。 Java JDK在linux系统有两个版本,一个开源版本Openjdk,还有一个是oracle官方版本jdk,oracleJDK既可通过添加ppa源命令行安装,也可以去官网下载jdk压缩包安装。 安装之前,一定要换国内源,否则速度可能会很慢,如何换源这是基操,我想...
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...