search
HomeComputer TutorialsComputer KnowledgeHow to Install Java on Debian 12: A Step-by-Step Guide

如何在Debian 12上安装Java:一步一步指南

Java is a powerful programming language that enables users to create a wide range of applications, such as building games, creating web applications, and designing embedded systems. Debian 12 is a powerful newly released Linux-based operating system that provides a stable and reliable foundation for Java applications to thrive. Together with Java and Debian systems you can open up a world of possibilities and innovations that can definitely help people a lot. This is only possible if Java is installed on your Debian system.

In this guide you will learn about:

How to install Java on Debian 12

  • How to install Java on Debian 12
  • How to remove Java installation from Debian 12 via apt package manager
  • How to install Java on Debian 12
  • How to Remove Java from Debian 12 Installed via Deb File
  • How to install Java on Debian 12
  • How to remove Java installation from SDKMAN on Debian 12

How to install and use multiple Java versions on Debian 12

How to update Java on Debian 12

Bonus Method: How to Install Other Java Versions on Debian 12

in conclusion

How to install Java on Debian 12

You can install Java on Debian 12:

  • apt package manager
  • deb package
  • SDKMAN

How to install Java on Debian 12

Previous Debian source libraries included various Java versions, such as Java 8, Java 11, Java 17, Java 18 and Java 19. However, the latest Debian 12 source repositories exclude other Java versions except Java 17. Therefore, you will be able to install Java 17 on Debian 12 only through the apt command by following these steps:

Step 1: Update Debian Repository

Because you are installing Java from the Debian repository, you must first ensure that it is updated, which can be done with the following command:

Sudo apt update&sudo apt upgrade-y

Step 2: Install Java on Debian 12 from APT

After the update, you can install Java on Debian 12 through the command given below:

sudo apt install openjdk—17—jdk

Or you can use the following command to install Java 17 on Debian

sudo apt install default—jdk

Step 3: Check Java Version on Debian 12

To check if Java is installed correctly on Debian you can use the following command:

javac version

How to remove Java from Debian 12 installed via apt package manager

If you want to remove a specific version of Java installed from the APT package manager, just use the following syntax:

Sudo apt delete Java_Version-y

Note: Don’t forget to replace java_version with the version installed on your Debian system by the apt package manager.

How to install Java on Debian 12

Java officially provides deb package files, making installation very simple. You can download any version of Java and install it on Debian using the apt command.

If you are interested in installing the latest version of Java on Debian 12 from the Deb package, please follow these steps:

Step 1: Download Java deb package

First, you need to download the Java deb package required for Debian from the official website. If you want to download Java directly from the terminal, you can simply use the following command:

www.example.com

Step 2: Install Java deb package on Debian 12

After downloading the deb package, you can use the apt installation command to install the latest version of Java on Debian:

Sudo apt installation ./jdk-21_linux-x64_bin.deb

Step 3: Check Java Version on Debian

To verify that the latest version of Java is installed on Debian, you can execute the following command:

javac version

How to Remove Java from Debian 12 Installed via Deb File

If you have installed Java on Debian 12 via deb file and want to remove it from the system, you can use apt command to remove this version from the system. However, you must ensure that you install the version on Debian via the deb package.

Since I already have Java 21 installed on Debian, the following command will be used to remove it from the system:

sudo apt remove jdk—21

How to install Java on Debian 12

In addition to installing Java from the Debian source repositories or tar.gz files, you can also install Java on Debian 12 using a third-party application called SDKMAN. Specific steps are as follows:

Step 1: Install cURL and Zip on Debian

Make sure you have cURL and Zip installed on Debian, if not, you can install both on your system by executing the following command:

Sudo apt install curl compressed package

Step 2: Download and install SDKMAN on Debian

You can then execute the following script in the Debian terminal to download and install SDKMAN on your system:

Curl-S "https://get.sdkman.io"|BASH

Step 3: Initialize SDKMAN on Debian

To complete the installation of SDKMAN on Debian 12, you must run the "browser" command that appears immediately after executing the above command:

/home/username/.sdkman/bin/www.example.com

Note: The username in the above command will be different in your scenario.

Step 4: Check SDKMAN version

You can confirm whether SDKMAN is successfully installed on Debian by running the following version command:

sdk version

Step 5: Check the Java version list on SDKMAN

To see a list of Java versions that can be installed on Debian 12 via SDKMAN, you can run the following command:

sdk list java

It will provide you with a list of different Java versions, vendors and identifiers. Here, you care about identifiers. Select your supplier and note the supplier's identifier. Then use the "q" button to exit the list:

Step 6: Install Java on Debian from SDKMAN

Then you can install Java on Debian 12 rom SDKMAN using the following command:

sdk install java identifier

Here I am installing Java 19 on Debian from SDKMAN:

Step 7: Check Java Version on Debian

To ensure that the Java installed from SDKMAN is the default Java version on Debian, you can run the following command to confirm:

javac version

How to remove Java installation from SDKMAN on Debian 12

You cannot remove Java on Debian 12 directly from SDKMAN as it does not allow the default Java version to be uninstalled from the system. To remove Java on Debian, you must set a different Java version as the default version, which can be done with the following command:

Sdkman uses Java identifiers

Or use the UPDATE_Alternative method to switch to another Java version on Debian. Once this is done, you can remove the Java installation on Debian from SDKMAN using the following command:

SDK Uninstall Java 19-AMZN

How to use multiple Java versions on Debian 12

Some applications require a specific Java version to be installed on your system. In this case, removing the current version of Java on the system is not an ideal option. Don't worry, you can use the following steps to use any Java version on your system without removing the previous steps:

Step 1: Check Current Java Version

Before using another Java version on Debian, you must confirm the current Java version you are using on your system, this can be done with the following command:

javac version

Step 2: Select the default Java executable

Now you have to select the default Java executable on Debian from the list of Java versions currently installed on your system. You can do this through the command given below:

Sudo Update – Alternative – Configure javac

Step 3: Select Java version

You must select the Java version to use on your system, keep the current Java version by entering the selection number:

Step 4: Check Java Version

After completion, use the VERSION command again to confirm that the Java version on Debian has been updated:

javac version

Tip: If you fail to remove Java from your Debian system, first try switching to another Java version before trying to remove it.

How to update Java on Debian 12

If there is a new update for Java, you can reinstall it by downloading the updated Deb file, targ.gz file or installing Java from SDKMAN. Then use the step-by-step guidance provided in the UPDATE-Alternative method of this guide to update Java on Debian.

How to install other Java versions on Debian 12

If you are using an older Debian version and are interested in installing another Java version from APT, you can simply specify the Java version in place of VERSION_NO:

sudo apt install openjdk—version_no—jdk

in conclusion

Installing Java on Debian 12 will allow you to develop applications, games or design embedded systems. You can install Java on Debian directly from the apt package manager. However, this method will only install the Java 17 version on your system. To install the latest Java version on Debian 12, you have to download the tar.gz file from the official Java website. Then follow the step-by-step instructions provided in this guide to install Java on Debian. You can also install the SDKMAN tool on Debian so that you can easily install any Java version on your system. The choice of Java installation method depends on your needs, so choose the method wisely and start using Java on Debian system.

The above is the detailed content of How to Install Java on Debian 12: A Step-by-Step Guide. For more information, please follow other related articles on the PHP Chinese website!

Statement
This article is reproduced at:每日运维. If there is any infringement, please contact admin@php.cn delete
带你搞懂Java结构化数据处理开源库SPL带你搞懂Java结构化数据处理开源库SPLMay 24, 2022 pm 01:34 PM

本篇文章给大家带来了关于java的相关知识,其中主要介绍了关于结构化数据处理开源库SPL的相关问题,下面就一起来看一下java下理想的结构化数据处理类库,希望对大家有帮助。

Java集合框架之PriorityQueue优先级队列Java集合框架之PriorityQueue优先级队列Jun 09, 2022 am 11:47 AM

本篇文章给大家带来了关于java的相关知识,其中主要介绍了关于PriorityQueue优先级队列的相关知识,Java集合框架中提供了PriorityQueue和PriorityBlockingQueue两种类型的优先级队列,PriorityQueue是线程不安全的,PriorityBlockingQueue是线程安全的,下面一起来看一下,希望对大家有帮助。

完全掌握Java锁(图文解析)完全掌握Java锁(图文解析)Jun 14, 2022 am 11:47 AM

本篇文章给大家带来了关于java的相关知识,其中主要介绍了关于java锁的相关问题,包括了独占锁、悲观锁、乐观锁、共享锁等等内容,下面一起来看一下,希望对大家有帮助。

一起聊聊Java多线程之线程安全问题一起聊聊Java多线程之线程安全问题Apr 21, 2022 pm 06:17 PM

本篇文章给大家带来了关于java的相关知识,其中主要介绍了关于多线程的相关问题,包括了线程安装、线程加锁与线程不安全的原因、线程安全的标准类等等内容,希望对大家有帮助。

详细解析Java的this和super关键字详细解析Java的this和super关键字Apr 30, 2022 am 09:00 AM

本篇文章给大家带来了关于Java的相关知识,其中主要介绍了关于关键字中this和super的相关问题,以及他们的一些区别,下面一起来看一下,希望对大家有帮助。

Java基础归纳之枚举Java基础归纳之枚举May 26, 2022 am 11:50 AM

本篇文章给大家带来了关于java的相关知识,其中主要介绍了关于枚举的相关问题,包括了枚举的基本操作、集合类对枚举的支持等等内容,下面一起来看一下,希望对大家有帮助。

java中封装是什么java中封装是什么May 16, 2019 pm 06:08 PM

封装是一种信息隐藏技术,是指一种将抽象性函式接口的实现细节部分包装、隐藏起来的方法;封装可以被认为是一个保护屏障,防止指定类的代码和数据被外部类定义的代码随机访问。封装可以通过关键字private,protected和public实现。

归纳整理JAVA装饰器模式(实例详解)归纳整理JAVA装饰器模式(实例详解)May 05, 2022 pm 06:48 PM

本篇文章给大家带来了关于java的相关知识,其中主要介绍了关于设计模式的相关问题,主要将装饰器模式的相关内容,指在不改变现有对象结构的情况下,动态地给该对象增加一些职责的模式,希望对大家有帮助。

See all articles

Hot AI Tools

Undresser.AI Undress

Undresser.AI Undress

AI-powered app for creating realistic nude photos

AI Clothes Remover

AI Clothes Remover

Online AI tool for removing clothes from photos.

Undress AI Tool

Undress AI Tool

Undress images for free

Clothoff.io

Clothoff.io

AI clothes remover

AI Hentai Generator

AI Hentai Generator

Generate AI Hentai for free.

Hot Article

R.E.P.O. Energy Crystals Explained and What They Do (Yellow Crystal)
2 weeks agoBy尊渡假赌尊渡假赌尊渡假赌
Repo: How To Revive Teammates
4 weeks agoBy尊渡假赌尊渡假赌尊渡假赌
Hello Kitty Island Adventure: How To Get Giant Seeds
4 weeks agoBy尊渡假赌尊渡假赌尊渡假赌

Hot Tools

Safe Exam Browser

Safe Exam Browser

Safe Exam Browser is a secure browser environment for taking online exams securely. This software turns any computer into a secure workstation. It controls access to any utility and prevents students from using unauthorized resources.

ZendStudio 13.5.1 Mac

ZendStudio 13.5.1 Mac

Powerful PHP integrated development environment

SublimeText3 English version

SublimeText3 English version

Recommended: Win version, supports code prompts!

Zend Studio 13.0.1

Zend Studio 13.0.1

Powerful PHP integrated development environment

Dreamweaver CS6

Dreamweaver CS6

Visual web development tools