String filename = createFilename(train); File file = new File(filename); if (!file.exists()) {
String filename = createFilename(train); File file = new File(filename); if (!file.exists()) {
String filename = createFilename(train); File file = new File(filename); if (!file.exists()) {
String filename = createFilename(train); File file = new File(filename); if (!file.exists()) {