/media/sda-magnetic/david/Dokumente-15/fernuni-hagen/cs-i-ii/old-cs-2-03/java-src/Fridgerator.java

public class Fridgerator {
   public static void main (String [] args) {
   
   }
   public boolean works () {
     return true;
   }
   public boolean isempty () {
     return false;
   }
   public String send_msg_missing () {
      return "Coca Cola";
   }
}

class Robot {
   public String send_msg () {
     return "Wares have incommed";
   }
}