How To Install, Update And Uninstall Java on Windows, MacOS and Ubuntu By Dmytro Shvechikov Java Tutorials 0 Comments In the scope of this article, I’ll explain to you how to install Java, how to update Java version and how to uninstall Java completely for 3 the most popular operating systems: Windows 10, MacOS, and Ubuntu. This tutorial is written to help New Linux Users, who want to uninstall Java Development Kit (JDK) installed on their Linux. The tasks performed on Ubuntu 16.04, but this will also work on other Debian Based Linux like Linux Mint, Kali Linux, etc.

I want to uninstall Eclipse version Mars 2, but it doesn't appear in the 'Programs and Features' area of the Windows Control Panel. The installer has installed start menu shortcuts and other artifacts, so it's not just a matter of deleting the installation folder.

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3 Answers

There is no automated uninstaller.

You have to remove Eclipse manually. At least Eclipse does not write anything in the system registry, so deleting some directories and files is enough.

Note: I use Unix style paths in this answer but the locations should be the same on Windows or Unix systems, so ~ refers to the user home directory even on Windows.

Why is there no uninstaller?

According to this discussion about uninstalling Eclipse, the reasoning for not providing an uninstaller is that the Eclipse installer is supposed to just automate a few tasks that in the past had to be done manually (like downloading and extracting Eclipse and adding shortcuts), so they also can be undone manually. There is no entry in 'Programs and Features' because the installer does not register anything in the system registry.

How to quickly uninstall Eclipse

Just delete the Eclipse directory and any desktop and start menu shortcuts and be done with it, if you don't mind a few leftover files.

In my opinion this is generally enough and I would stop here, because multiple Eclipse installations can share some files and you don't accidentally want to delete those shared files. You also keep all your projects.

How to completely uninstall Eclipse

If you really want to remove Eclipse without leaving any traces, you have to manually delete

• all desktop and start menu shortcuts
• the installation directory (e.g. ~/eclipse/photon/)
• the p2 bundle pool (which is often shared with other eclipse installations)

The installer has a 'Bundle Pools' menu entry which lists the locations of all bundle pools. If you have other Eclipse installations on your system you can use the 'Cleanup Agent' to clean up unused bundles. If you don't have any other Eclipse installations you can delete the whole bundle pool directory instead (by default ~/p2/).

If you want to completely remove the Eclipse installer too, delete the installer's executable and the ~/.eclipse/ directory.

Depending on what kind of work you did with Eclipse, there can be more directories that you may want to delete. If you used Maven, then ~/.m2/ contains the Maven cache and settings (shared with Maven CLI and other IDEs). If you develop Eclipse plugins, then there might be JUnit workspaces from test runs, next to you Eclipse workspace. Likewise other build tools and development environments used in Eclipse could have created similar directories.

How to delete all projects

If you want to delete your projects and workspace metadata, you have to delete your workspace(s). The default workspace location is ´~/workspace/´. You can also search for the .metadata directory to get all Eclipse workspaces on your machine.

If you are working with Git projects, these are generally not saved in the workspace but in the ~/git/ directory.

Look for an installation subdirectory, likely named eclipse. Under that subdirectory, if you see files like eclipse.ini, icon.xpm and subdirectories like plugins and dropins, remove the subdirectory parent (the one named eclipse).

That will remove your installation except for anything you've set up yourself (like workspaces, projects, etc.).

Hope this helps.

Usually, In general, Eclipse doesn't have a traditional install or uninstall process. It's just a folder of the application and then a workspace that you would have selected/created when you first run it.

If you used the Eclipse Installer, you may also have a bundle pool folder named .p2 under your user home directory.There can also be .eclipse in your user home. Other than that, there shouldn't be anything Eclipse-related. Uninstallation is just removing those folders

Other than that, you can use below guideline to uninstall the eclipse.

How to Uninstall Eclipse

If you are using the Windows 10 or other Windows Operating Systems and want to uninstall Eclipse windows version, then check the methods below.

Like we seen methods to uninstall Eclipse on Mac OS, we can also follow different ways to uninstall Eclipse on Windows systems.

Method-1: Use application uninstaller

You can use the uninstaller application that sometimes downloaded and installed on your Windows PC along with the software.

Go to the parent folder where Eclipse is stored. Look for the application file named as ‘Uninstaller.’ When you find it, double click on it and follow the instructions to remove Eclipse from Windows system.

Method-2: Using Add or Remove Programs

You know that any application or software you install on your system is listed under the programs section. You can take help of this inbuilt app to remove Eclipse from Windows.

1. Press Windows + S key and type ‘Programs.’
2. When you see an icon of ‘Add or Remove Programs’, click on it.
3. Now, from the list of applications, look for ‘Eclipse.’
4. When you locate the app, click on it and select ‘Uninstall.’
5. Click yes/uninstall when prompted.

Resource: How-do-I-completely-remove-uninstall-Eclipse-from-my-computer

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Uninstall Java Windows 10

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Today we will learn how to download and install Java on Windows 10. If you are new to java programming then this is the first step you need to perform. Until unless your java Windows 10 environment is set up properly, you will not be able to develop Java programs and run them successfully.

Table of Contents

• 1 How to Install Java in Windows 10

Uninstall Java Download Windows 10

How to Install Java in Windows 10

Installing Java on Windows 10 is really easy, just follow the steps as follows:

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1. Java Download for Windows 10

First step is to download java installation files from Oracle’s website. Java 9 is the latest version, so go to this link and accept the license agreement. Then click on the download link for windows as shown in below image and save the file.

Note: If you are trying to install Java 8 or earlier, then you need to know whether your Windows 10 is 32-bit or 64-bit. It’s because there are two different installers for Windows as seen in this link for Java 8 binaries.

If your Windows 10 is 32-bit OS then download Windows x86 exe file, else download Windows x64 exe file.

If you are not sure of your Windows version, you can easily check it in Settings > System Settings > About.


2. Java Windows 10 installation steps

Next step is to run the downloaded java installer executable file. Just double click on it and follow the steps. Most of the time you don’t need to check anything and go with default selection, below are images from my installation screens. They might differ a little bit based on your java version installation but mostly it’s the same as usual.

3. Java on Windows 10 Version Check

Finally, we have to check if java is installed properly or not. We can do that by using java -version command in command prompt, as shown in below image.

Note: In older java versions and other windows operating systems, you need to set up two environment variables to get it working.

Go to System Properties (Right Click on My Computer and select Properties) > Advanced > Environment Variables.

In the popup window, System variables section, click on New button and add a variable with the following details:

Name: JAVA_HOME

Value: C:Program FilesJavajdk1.6.0_25

After this, you need to edit the Path variable already present there. Just select the Path variable and click on Edit button. In the popup window value section, go to the end and add the following ;C:Program FilesJavajdk1.6.0_25bin (The colon is used as a delimiter, so don’t miss that!)

Now your setup is done and you can check it by opening a command prompt and running command java - version.

In Windows 10 and Java 9, we don’t need to do these manually. Java installer takes care of that and you can check environment variable Path value, as shown in below image. Note that we don’t need to set the JAVA_HOME variable.

4. Download and Install Java IDE

This is an optional step but highly recommended. If you want to get things done easily, you should install either Eclipse, Intellij Idea or NetBeans IDE that helps a lot in development of java programs. Just download and install it with executable file, they are straight forward.

That’s all for downloading and installing java on windows 10. Let me know if you face any issue in setting up the environment.

What’s after installing Java

Now you are ready to learn java programming, go through the articles on core java tutorial and learn java programming step by step.

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Note: A few years back, I made this video to install java 8 on windows 10. Steps are still almost the same so you can watch it to get more idea about it.

Mac Uninstall Java Download

Also if you want to have multiple java versions and want to switch between them easily, then go through this short 2-minute video.