Refactor of Detector.java

app/src/main/java/com/example/ueberwachungssystem/Detector.java

@@ -7,7 +7,7 @@ abstract public class Detector {
     private OnDetectionListener listener;
 
     /** Constructor - takes context of current activity */
-    public Detector() {};
+    public Detector() {}
 
 
     /** On Detection Listener - runs when violation is reported */