Labels:dialog box | monitor | sky | web site | window OCR: Object- Oriented Programming Dependents Problem There are several views open on some tree "t node 1S removed from All views should e redrawn Solution: "Dependents" Several objects {v1 "2" ...) maydepend on a single object "t More Generally... Event X occurs Notify several objects that "something important" happened. They can respond as they see fit. When an object gets notified that "something important" happened. What happened? Need pass some info about the event. Like which object was involved. HArTT Porter 2001 sone Hart
