如果我的文件不存在于android中

Question

我想如果password.txt存在，程序什么也不做，转到下一行，如果不存在password.txt，则创建此文件并在其上写入123456 但是程序会写在password.txt 123456上！我错在哪里？

    File file = new File(getExternalCacheDir(), "/sdcard/Robo/password.txt" );
                            if (!file.exists()) {
                                try {

                                    password="123456";
                                    File passfile = new     
                                    File("/sdcard/Robo/password.txt");
                                    passfile.createNewFile();
                                    FileOutputStream passout = new      
                                    FileOutputStream(passfile);
                                    OutputStreamWriter passoutw = new   
                                    OutputStreamWriter(passout);
                                    passoutw.append(password);
                                    passoutw.close();

                                    passout.close();

                    } catch (Exception e) {
                        Toast.makeText(getBaseContext(), e.getMessage(),
                                Toast.LENGTH_SHORT).show();
                    }

                            }     

Answer 1

File file = new File("/sdcard/Robo/password.txt" );