file I/O

File file = new File("fateh.txt");

        try {
            if (!file.exists()) {
                file.createNewFile();
                System.out.println("file created");
            }
        } catch (IOException e) {
            e.printStackTrace();
            e.getCause();
            System.out.println(e.getMessage());
        }

        try {
            Writer writer = new FileWriter(new File("fateh.txt"), false);
            writer.write("fateh is good person \n fateh is bad person asdfasdf \n second test");
            writer.flush();
            writer.close();
        } catch (IOException e) {
            System.out.println(e.getMessage());
        }

        try {
            Scanner reader = new Scanner(file);
            while (reader.hasNextLine()) {
                System.out.println(reader.nextLine());
            }

        } catch (FileNotFoundException e) {
            System.out.println(e.getMessage());
        }