Eclipse Plug-in Development Beginner's Guide - Second Edition

Time for action – responding to input

To show the effect of changing the TimeZone, it is necessary to add an hour hand to the clock. When the TimeZone is changed in the drop-down, the hour hand will be updated.

1. Add a zone field to the ClockWidget along with a setter:

   private ZoneId zone = ZoneId.systemDefault();
   public void setZone(ZoneId zone) {
     this.zone = zone;
   }

2. Getters and setters can be generated automatically. Once the field is added, navigate to Source | Generate Getters and Setters. It can be used to generate all missing getters and/or setters; in addition, a single getter/setter can be generated by typing set in the class body, followed by Ctrl + Space (Cmd + Space on macOS).
3. Add an hour hand in the drawClock method using the following: ...