private void btnOrderActionPerformed(java.awt.event.ActionEvent evt) {
        // TODO add your handling code here:

        //test
        File f = new File("Order.txt");
        try{
            ArrayList<String> los = new ArrayList<>();
            try (BufferedReader br = new BufferedReader(new FileReader(f))) {
                String line = br.readLine();
                while(line != null){
                    los.add(line);
                    line = br.readLine();
                }
            }

            String [] array = los.toArray(String[]::new);

            File pf = new File("Processing.txt");
            if(pf.exists()){
                try (BufferedWriter bw = new BufferedWriter(new FileWriter(pf))) {
                    for(String r : array){
                        bw.write(r);
                    }
                }
            }else{
                pf.createNewFile();
                try (BufferedWriter bw = new BufferedWriter(new FileWriter(pf))) {
                    for(String r : array){
                        bw.write(r);
                    }
                }
            }

        }catch (IOException ex) {
            Logger.getLogger(manageMenu.class.getName()).log(Level.SEVERE, null, ex);
        }