Eclipse Tips
Eclipse is a very powerful IDE for Java development. You can download it from eclipse.org/downloads. This page will contain tips for using Eclipse more efficiently in this class.
Contents
Refresh
Sometimes after you pull from git you will find that your project needs to be refreshed. The following steps are a bit heavy handed, but often will get your project back up and working again.
Select your project in the package explorer:
- "F5" to refresh
- "Alt-F5" to refresh Maven
- "Project" -> "Clean..." from the menu bar.
Note: In order to invoke the function keys on some laptops, you need to press the Function (Fn) modifier key.
Maven
Sometimes refreshing Maven isn't enough. Refer to Maven_Force_Update to update it.
Content Assist
The Content Assist feature completes partially entered code with existing code elements. Content Assist is amazing. You should use it.
Mac
On the Mac, the Spotlight often masks content assist. Follow this guide to set up a new keyboard shortcut of your choosing.
Windows
On Windows, it is pretty easy. Just type Ctrl+SPACE.
Content Assist lambda ()->{}
set up "body" template to produce an empty lambda (see images below)
Text for the copy buffer:
() -> {
${cursor}
}
example usage:
- type async
- type ctrl+SPACE (or whatever you have mapped content assist to)
- type RIGHT_ARROW
- type ctrl+SPACE (or whatever you have mapped content assist to)
- type ENTER
Content Assist fork, join imports
All classes are equal but some classes are more equal than others. The following will single out the FJ class to promote the static methods fork, join, and friends to be offered in content assist.
NOTE: for the video below, replace Habanero with FJ
Git Action Set
Pulling, Committing, and Pushing to your git repo on bitbucket will be common operations. Make the operations more readily available:
JDK Setup
By default Eclipse is often configured to use the JRE. Switching to the JDK is a easy way to get access to the Java source code which is great for tunneling in to see how the system is implemented.
Mac
https://manski.net/2011/12/eclipse-and-the-jdk-under-mac-os-x-lion/#manually-adding-a-jdk
Windows
http://www.gamefromscratch.com/post/2011/11/15/Telling-Eclipse-to-use-the-JDK-instead-of-JRE.aspx
JavaFX Setup
We will use JavaFX for some visualizations this semester. Installing the JavaFX plugin will get clean up the compiler warnings.
Install the e(fx)clipse plugin via Help -> Eclipse Marketplace:
Linux
sudo apt-get install openjfx
or
sudo yum install openjfx
Hierarchical Package Presentation
As the semester progresses the number of packages can get to be a bit unwieldy. Switching to Hierarchical Package Presentation might be worth trying out.
