Observer pattern java

class JPanelSignal extends JPanel implements Observer {

  void init(Signal lSigAObserver) {
    lSigAObserver.addObserver(this); // (2) ajout d'observateur
  }

  void update(Observable observable, Object objectConcerne) {
    repaint();  // (3) traitement de l'observation
  }
}

Source: fr.wikipedia.org

Similar codes

0 vote189 views1 answer
Arraylist to linkedlist java
Java
1 vote186 views1 answer
Java radnom
Java
0 vote183 views2 answers
Hide icon android studio
Java
2 votes166 views1 answer
Information Dialog in JavaFX
Java
2 votes151 views1 answer
Java swing button on click
Java
0 vote171 views6 answers
Java optional parameters
Java
8 votes123 views1 answer
Sha key android
Java
0 vote204 views1 answer
Subtract two variables in java
Java
0 vote201 views2 answers
Spring boot send email html template
Java Spring
0 vote169 views1 answer
ERROR: Failed to resolve: com.github.HaarigerHarald:android-youtubeExtractor:v1.7.0
Java