Question

I’m wondering if there is a String formatter in java similar to the java DecimalFormat(“0.#”)

I have the following set of numbers that needs to be masked with dashes, “00-0000-00”, I was hoping there would be a formatter that would enable me to do this in a similar way you handle DecimalFormat(“00-0000-00”). If such a method doesn’t exist, could someone please provide an example of an alternate solution.

I need to strip the dashes when saving to the database and add them back in when retrieving them from the database.

Thanks

Answer 1

Have you looked at String.format("%2d-%4d-%2d", int1, int2, int3)?

Example:

    int n = 12345678;
    String formatted = String.format("%2d-%4d-%2d", n / 1000000, (n / 100) % 10000, n % 100);
    int orig = Integer.valueOf(formatted.replace("-", ""));
    System.out.println(String.format("formatted=%s, orig=%d", formatted, orig));
    // formatted=12-3456-78, orig=12345678