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 System.out.println("Please enter username: ");
        String username = in.nextLine();

        System.out.println("Please enter password: ");
        String password = in.nextLine();

        System.out.println("Please enter age: ");
        int age = Integer.parseInt(in.nextLine());

        System.out.println("Please enter gender: ");
        char gender = in.next(".").charAt(0);

        System.out.println("Please enter income: ");
        double income = Double.parseDouble(in.nextLine());

        System.out.println("Please enter advertiser: ");
        boolean isadvertiser = Boolean.parseBoolean(in.nextLine());