주민등록번호 유효성 체크 메소드

프로그래밍/JAVA

by 라제폰 2009. 1. 30. 18:10

    public boolean getValidPid(String resident_no)
    {
        if ( resident_no.length() == 13 )
        {
            int num1    = Integer.parseInt(resident_no.charAt(0) + "");
            int num2    = Integer.parseInt(resident_no.charAt(1) + "");
            int num3    = Integer.parseInt(resident_no.charAt(2) + "");
            int num4    = Integer.parseInt(resident_no.charAt(3) + "");
            int num5    = Integer.parseInt(resident_no.charAt(4) + "");
            int num6    = Integer.parseInt(resident_no.charAt(5) + "");
            int num7    = Integer.parseInt(resident_no.charAt(6) + "");
            int num8    = Integer.parseInt(resident_no.charAt(7) + "");
            int num9    = Integer.parseInt(resident_no.charAt(8) + "");
            int num10   = Integer.parseInt(resident_no.charAt(9) + "");
            int num11   = Integer.parseInt(resident_no.charAt(10) + "");
            int num12   = Integer.parseInt(resident_no.charAt(11) + "");
            int num13   = Integer.parseInt(resident_no.charAt(12) + "");

            int total   = (num1 * 2) + (num2 * 3) + (num3 * 4) + (num4 * 5)
                        + (num5 * 6) + (num6 * 7) + (num7 * 8) + (num8 * 9)
                        + (num9 * 2) + (num10 * 3) + (num11 * 4) + (num12 * 5);

total = ( 11 - (total % 11) ) % 10;

            if ( total == num13 )
                return true;
            else
                return false;
        }
        else
        {
            return false;
        }
    }