Break after adding 1 ware

Uebung 1/Sortiment.cpp

@@ -6,6 +6,7 @@ void Sortiment::addWare(Ware *ware) {
   for (int i = 0; i < 10; i++) {
     if (this->waren[i] == nullptr) {
       this->waren[i] = ware;
+      break;
     }
   }
 }