Re: a way of converting a roman numeral into an integer

From:

ljs1987@hotmail.com

Newsgroups:

comp.lang.java.help

Date:

28 Dec 2006 08:11:25 -0800

Message-ID:

<1167322285.632433.24770@s34g2000cwa.googlegroups.com>

Oliver, thanks for the reply.

I have a rough idea on switch statements, i have some books with
explanations so i can look over them, would you recommend having
different cases for each Numeral? Or which way of doing it would you
recommend?

I was going to have something like this before within the code, char c
represents the character the user has input.

static int convertRoman(char c)
    {

    if (c=='I') return 1;
    if (c=='V') return 5;
    if (c=='X') return 10;
    if (c=='L') return 50;
    if (c=='C') return 100;
    if (c=='D') return 500;
    if (c=='M') return 1000;
    return 0;
    }

Oliver Wong wrote:

<ljs1987@hotmail.com> wrote in message
news:1167317587.329835.58210@n51g2000cwc.googlegroups.com...

Hi i'm fairly new to java and have been assigned to create a basic
application which converts a roman numeral inputted by a user and then
outputs the corresponding number (integer). Any tips on how to do this
will be much appriciated.

I was thinking of doing an array for each numeral and number but again
i can't really work this out till i figure out how to convert the
numeral into an integer.

    Presumably, you mean you want to convert an ASCII representation of the
roman numerals, so that the 4-character string "VIII" represents 8, as
opposed to using the Unicode single character representation for roman
numeral eight.

    Do you know how to use a switch statement?

    - Oliver