There is an event:
Interface xxxlistener {
Void Event1happens (String Param);
Void Event2happens (String Param);
}
Can be a corresponding class:
Class XXXDispatcher Extends Vector Implements XXXListener {
Public void Event1happens (String param) {
For (XXXListener Listener: this) {
Listener.event1happens (param);
}
}
Public void Event2happens (String param) {
For (XXXListener Listener: this) {
Listener.event2happens (param);
}
}
}
Implements XXXListener is not a must, but most of the IDE supports direct imports, you can automatically generate all methods.
Then the event source addXXXListener and RemovexxxListener call XXXDispatcher.add, Remove
You need to trigger an event 1 directly call xxxdispatcher.event1happens (param);
