"Permand" <per400543@ofirmail.dk> wrote in message news:<41ab2d81$0$86727$edfadb0f@dread11.news.tele.dk>...
> "Henrik" <hsx@ofir.dk> skrev i en meddelelse
> news:5623df82.0411290409.cb7c817@posting.google.com...
> > Hej
> > >
> > > Kan I hjælpe mig med at lave et Java program til at checke om et
> > > tilfældigt indtastet cpr nummer er korrekt ved brug af modulus 11
> > > metoden som er vist nedenunder?
> > >
> > > CPR nummer: 1711968535
> > > 1*4+7*3+1*2+1*7+9*6+6*5+8*4+5*3+3*2+5*1 = 176
> > > 176 modulus 11 = 0
> > > CPR nummer er ok.
> > >
> > > På forhånd tak
> > >
> > > Henrik
>
> Kan du bruge denne ?
>
> import java.util.*;
>
> public class CPR {
> // format of danish CPR number:
> // ddmmyy-nnnc
> // where:
> // dd = day
> // mm = month
> // yy = year
> // nnn = sequence (includes century)
> // c = checksum (includes sex)
> private String number;
>
> // constructor
> public CPR(String number) {
> this.number = number;
> }
>
> // check validity
> public boolean isValid() {
> int[] ix = { 0, 1, 2, 3, 4, 5, 7, 8, 9, 10 };
> int[] c = { 4, 3, 2, 7, 6, 5, 4, 3, 2, 1 };
> if (number.length() != 11) {
> return false;
> }
> if (number.charAt(6) != '-') {
> return false;
> }
> for (int i = 0; i < 10; i++) {
> if (!Character.isDigit(number.charAt(ix[i]))) {
> return false;
> }
> }
> if (dd() > 31) {
> return false;
> }
> if (mm() > 12) {
> return false;
> }
> if (century() == 0) {
> return false;
> }
> int temp = 0;
> for (int i = 0; i < 10; i++) {
> temp = temp + c[i] * numericValue(number.charAt(ix[i]));
> }
> return ((temp % 11) == 0);
> }
> // check make/female
> public boolean isMale() {
> return odd(numericValue(number.charAt(10)));
> }
> public boolean isFemale() {
> return even(numericValue(number.charAt(10)));
> }
> // get date of birth
> public Date getBirth() {
> int year = yy() + century();
> int mon = mm() - 1;
> int mday = dd();
> GregorianCalendar temp = new GregorianCalendar();
> temp.set(year, mon, mday);
> return temp.getTime();
> }
> // get age
> public int getAge() {
> Calendar now = GregorianCalendar.getInstance();
> Calendar born = new GregorianCalendar();
> born.setTime(getBirth());
> int result;
> result = now.get(Calendar.YEAR) - born.get(Calendar.YEAR);
> if (now.get(Calendar.DAY_OF_YEAR) < born.get(Calendar.DAY_OF_YEAR)) {
> result--;
> }
> return result;
> }
>
> // standard methods
> public int hashCode() {
> return number.hashCode();
> }
> public boolean equals(Object o) {
> if(o instanceof CPR) {
> return number.equals(((CPR)o).number);
> } else {
> return false;
> }
> }
> // get parts
> private int dd() {
> return Integer.parseInt(number.substring(0, 2));
> }
> private int mm() {
> return Integer.parseInt(number.substring(2, 4));
> }
> private int yy() {
> return Integer.parseInt(number.substring(4, 6));
> }
> // calculate century
> private int century() {
> switch (numericValue(number.charAt(7))) {
> case 0 :
> case 1 :
> case 2 :
> case 3 :
> return 1900;
> case 4 :
> case 9 :
> if (yy() < 37)
> return 2000;
> else
> return 1900;
> case 5 :
> case 6 :
> case 7 :
> case 8 :
> if (yy() < 37)
> return 2000;
> else if (yy() > 57)
> return 1800;
> else
> return 0;
> default :
> return 0;
> }
> }
> // odd/even
> private static boolean odd(int v) {
> return ((v & 1) == 1);
> }
> private static boolean even(int v) {
> return ((v & 1) == 0);
> }
> // numeric value of char
> private static int numericValue(char c) {
> return (c - '0');
> }
> }
Ja, men jeg får en fejl ved kørslen: Exception in thread main
java.lang.NoSuchMethodError:main
Hvad gør jeg forkert?