public Catalog getCatalog() {

        Catalog cat = new Catalog();


        DBManager db = new DBManager();

        List<Laptop> l = db.getAllLaptops();
        int randomInt;
        String output = new String();
        for(int i = 0;i<5;i++){
            Random randomGenerator = new Random();
            randomInt = randomGenerator.nextInt(l.size());
            Laptop actual = l.get(randomInt);
            l.remove(randomInt);

            output += "\t\t\t------ "+actual.getModel() +"  ("+actual.getBrand() +")" +" ------\n";
            output += "\t\t\t\t------ "+actual.getPrice() +" €"+" ------\n";
            output += "Settings:\nProcessor: "+actual.getProcessor() + "\n";
            output += "Processor: "+actual.getClock() + "\n";
            output += "RAM: "+actual.getRam()+"\n";
            output += "Graphics: "+actual.getGraphadap()+"\n";
            output += "Screen: "+actual.getScreensize()+"   "+actual.getScreenres()+"\n";

        }
        cat.setPlacemark(output);
        return cat;
    }