This page might be outdated (contact your instructor for correct Eclipse information)
Eclipse 2021_12_R Installation (Spring 2022)
Overview
In the past it was necessary to install java and Eclipse, but the Eclipse installer
now includes all the tools (compiler, jvm, javadoc, etc.) you need. To have
all the environment you need for CMSC131/CMSC132, you will use the Eclipse
installer and add a submission plugin. Information for PCs and Macs is provided
below. If you have a linux system an installer is also available at the Eclipse installer's
site (see Software Sources below).
Eclipse 2021_12_R includes Java 17. Keep in mind that the submit server currently relies
on Java 11. Do not use features in your code that only apply to Java versions that came
after Java 11.
Some versions of Eclipse don't work properly when using macOS Big Sur;
Eclipse 2021_12_R works fine.
For PCs
- Download the Eclipse installer Windows x86_64 available in the blue box with
the title "Try the Eclipse Installer 2021‑12 R" you will
see at
https://www.eclipse.org/downloads/packages/release/2021-12/r/.
- Double-click on the downloaded file.
- Eventually you will see a list of Eclipse IDE options; select "Eclipse IDE for Java Developers".
- Before selecting INSTALL make sure that next to Java 11 + VM you select JRE 17.
- Once the installation is completed, your will see a shortcut to Eclipse on your desktop.
- Start Eclipse and install the Course Management Plugin Installation as described below.
If you don't install this plugin, you will not see the "Submit Project" button that will allow you to
submit projects from Eclipse.
- Eclipse does not come with an uninstaller. Some information regarding uninstalling
Eclipse is provided at the end.
For Macs
- Download the Eclipse installer macOS x86_64 available in the blue box with the title
"Try the Eclipse Installer 2021‑12 R" you will see at
https://www.eclipse.org/downloads/packages/release/2021-12/r/.
- Double-click on the downloaded file.
- Double-click on the "Eclipse Installer" file you see.
- Eventually you will see a list of Eclipse IDE options; select "Eclipse IDE for Java Developers".
- Before selecting INSTALL make sure that next to Java 11 + VM you select JRE 17.
- You will not find Eclipse in the Applications folder; using Spotlight, search for "Eclipse".
- Start Eclipse and install the Course Management Plugin Installation as described below. If you don't install this plugin, you will not see the "Submit Project" button that will allow you to submit projects from Eclipse.
- Eclipse does not come with an uninstaller. Deleting the folder eclipse present in the /Users/USERNAME folder (where USERNAME corresponds to the account username) will remove eclipse. Workspaces will not be removed by deleting this eclipse folder. Several versions of eclipse can reside under the eclipse folder.
Course Management Plugin Installation
- Launch Eclipse.
- In Eclipse, select Help→Install New Software...
- Click on the "Add..." button.
- In the dialog box:
- For "Name" use:
Maryland Eclipse Update Site
- For "Location" use:
http://www.cs.umd.edu/~pugh/eclipse
- Click on the "Add" button.
- In a PC click the > next to "Uncategorized" and select
the Course Project Manager. In a Mac, first uncheck the entry
labeled "Group items by category" then select (check) "Course
Project Manager".
- Select Next twice, accept the license, and click Finish.
- Select "Install anyway" in the popup window that warns about installing
software that contains unsigned content.
Uninstalling Eclipse
Eclipse does not come with an uninstaller. Some general information to remove
Eclipse is provided below.
- PC → Delete the Eclipse installation directory, the shortcut and the .p2
directory at C:\Users\YourUserName\
- Mac → Delete from /Users/YourUserName the folders .p2, .eclipse and eclipse.
Software Sources