anchor.diff:  I recommend configuring Eclipse to show more errors and warnings in order to help spot mistakes and code smells early.
   
   * From Eclipse, import my sample https://github.com/oliviercailloux/java-course/blob/master/Best%20practices/Eclipse-prefs.epf[epf] (Eclipse preference) file. 
  -* You can read the file contents to see what this changes to your Eclipse configuration.
  +* You can look at the text in the file to see what this changes to your Eclipse configuration.
   * Check in `Windows / Preferences` whether the changes were applied. For example, check in `Java / Code Style / Code Templates` that the `Catch block body` contains `throw new IllegalStateException(e);`.
   * Check in your project properties, `Java Compiler / Errors/Warnings` that the project uses your global Eclipse compiler settings.
   * Clean and recompile your project to see the effect.
  
positive.code: == Eclipse
  For Eclipse users, I strongly recommend reading the following, for a great increase to your productivity and pleasure of coding.
  
  * Workbench User Guide, http://help.eclipse.org/2019-03/topic/org.eclipse.platform.doc.user/gettingStarted/qs-02a.htm?cp=0_1_0_0[Basic tutorial]
  * Workbench User Guide, http://help.eclipse.org/2019-03/topic/org.eclipse.platform.doc.user/tips/platform_tips.html?cp=0_5[Tips and Tricks]
  * Java development user guide, http://help.eclipse.org/2019-03/topic/org.eclipse.jdt.doc.user/gettingStarted/qs-2.htm[Basic tutorial]
  * Java development user guide, http://help.eclipse.org/2019-03/topic/org.eclipse.jdt.doc.user/tips/jdt_tips.html?cp=1_5[Tips and Tricks] (JDT) (bit by bit!)
  
negative.code: 
  == Java
  
  * A https://github.com/oliviercailloux/java-course/blob/master/Best%20practices/Various.adoc#installing-the-jdk[JDK] from OpenJDK (11 or ulterior)
  * https://maven.apache.org/download.cgi[Maven] (https://stackoverflow.com/questions/8826881/maven-install-on-mac-os-x[this] might be useful for Mac OS; I didn’t test it)
  
  For Java SE, add:
  