1. 确认Ubuntu系统版本和架构 首先,打开终端并输入以下命令来查看Ubuntu的系统版本和架构: bash lsb_release -a uname -m 这将显示你的Ubuntu版本(例如Ubuntu 20.04.x LTS)和架构(例如x86_64)。 2. 下载Oracle Java 17安装包 Oracle Java的官方下载页面为: Oracle Java SE Downloads 在该页面上,选择适合你...
Verify the installation of OpenJDK 17 manually using the java –version command. The installation is complete if the output displays the correct Java version and path. Switching Between Java Versions on Ubuntu If you have multiple Java versions installed, you may need to switch between them to ...
How to install the Java Runtime Environment We begin with the Java Runtime Environment, which you need on Ubuntu to run Java programs. To install it, you'll have to enter the terminal. Note that after each command we mention here, you'll have to pressEnter. Open terminal withCtrl + Al...
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...
Java programs. Fortunately, Ubuntu 20.04 provides an easy and convenient way to install Java using the Apt-Get package manager. In this article, we will walk you through the step-by-step process of installing Java on Ubuntu 20.04 using Apt-Get, so you can get started with your Java ...
To install OpenJDK 17 on Ubuntu 22.04, execute the commands below; copyapt update copyapt install openjdk-17-jdk Confirm the version; copyjava --version copyopenjdk 17.0.3 2022-04-19 OpenJDK Runtime Environment (build 17.0.3+7-Ubuntu-0ubuntu0.22.04.1) ...
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 jre on ubuntu Enter ‘Y’ or ‘y’ when prompted. Once finished, you will then have the latest Java Runtime Environment (JRE) package installed. You will be able to run Java based software. If however you need to install a specific version, you can write openjdk-8-jre or open...
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_...
Next, check if Java is already installed: 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 ...