How do I search and match in text file for java?

  public static void main(String[] args) throws FileNotFoundException
    {
        try
        {
            File f = new File("Files\\cities.txt");
            Scanner input = new Scanner(f);
            String text;
            while(input.hasNextLine())
            {
                text = input.nextLine();
                process(text);
            }


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

    public static void process(String text)
    {   String name = null;
    int id;
        Scanner code = new Scanner(System.in);
        System.out.println("enter the postcode");       
        id = code.nextInt();
        Scanner data = new Scanner(text);

         if(code.equals(0))System.out.println(name);

        name = data.next();
        id = data.nextInt();

        while(data.hasNextDouble())
        {

        }
    System.out.println(name+ " ");

    }
}