public void deleteCustomer(int id) {
     try {
      File xmlFile = new File(filename);
     CustomersDocument doc = CustomersDocument.Factory.parse(xmlFile);
    CustomerType[] customers = doc.getCustomers().getCustomerArray();

   for (int i = 0; i < customers.length; i++) {
        CustomerType customer = customers[i];
        if(customer.getId()==id){
                        customer.setNil() ;
                        break;
               }
   }
   doc.save(xmlFile);
   } catch (Exception ex) {
        ex.printStackTrace();
        }
   }

main method:

    public static void main(String[] args) {
    String filename = "F://JavaTest//Eclipse//XMLBean//xml//customers_new.xml";
                   
    CustomerXMLBean customerXMLBean = new CustomerXMLBean(filename);
                   
    customerXMLBean.deleteCustomer(3);
    }