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Klasa do walidacji poprawności PESELu.
This commit is contained in:
Piotr Szefler 2021-10-27 18:27:40 +02:00
parent f0567b3408
commit 3d1f991b28
1 changed files with 143 additions and 0 deletions
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PeselValid.java Normal file
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package wmiproject;
public class PeselValid {
private byte PESEL[] = new byte[11];
private boolean valid = false;
public PeselValid(String PESELNumber) {
if (PESELNumber.length() != 11){
valid = false;
}
else {
for (int i = 0; i < 11; i++){
PESEL[i] = Byte.parseByte(PESELNumber.substring(i, i+1));
}
if (checkSum() && checkMonth() && checkDay()) {
valid = true;
}
else {
valid = false;
}
}
}
public int getBirthYear() {
int year;
int month;
year = 10 * PESEL[0];
year += PESEL[1];
month = 10 * PESEL[2];
month += PESEL[3];
if (month > 80 && month < 93) {
year += 1800;
}
else if (month > 0 && month < 13) {
year += 1900;
}
else if (month > 20 && month < 33) {
year += 2000;
}
else if (month > 40 && month < 53) {
year += 2100;
}
else if (month > 60 && month < 73) {
year += 2200;
}
return year;
}
public int getBirthMonth() {
int month;
month = 10 * PESEL[2];
month += PESEL[3];
if (month > 80 && month < 93) {
month -= 80;
}
else if (month > 20 && month < 33) {
month -= 20;
}
else if (month > 40 && month < 53) {
month -= 40;
}
else if (month > 60 && month < 73) {
month -= 60;
}
return month;
}
public int getBirthDay() {
int day;
day = 10 * PESEL[4];
day += PESEL[5];
return day;
}
private boolean checkSum() {
int sum = 1 * PESEL[0] +
3 * PESEL[1] +
7 * PESEL[2] +
9 * PESEL[3] +
1 * PESEL[4] +
3 * PESEL[5] +
7 * PESEL[6] +
9 * PESEL[7] +
1 * PESEL[8] +
3 * PESEL[9];
sum %= 10;
sum = 10 - sum;
sum %= 10;
if (sum == PESEL[10]) {
return true;
}
else {
return false;
}
}
private boolean checkMonth() {
int month = getBirthMonth();
if (month > 0 && month < 13) {
return true;
}
else {
return false;
}
}
private boolean checkDay() {
int year = getBirthYear();
int month = getBirthMonth();
int day = getBirthDay();
if ((day >0 && day < 32) &&
(month == 1 || month == 3 || month == 5 ||
month == 7 || month == 8 || month == 10 ||
month == 12)) {
return true;
}
else if ((day >0 && day < 31) &&
(month == 4 || month == 6 || month == 9 ||
month == 11)) {
return true;
}
else if ((day >0 && day < 30 && leapYear(year)) ||
(day >0 && day < 29 && !leapYear(year))) {
return true;
}
else {
return false;
}
}
private boolean leapYear(int year) {
if (year % 4 == 0 && year % 100 != 0 || year % 400 == 0)
return true;
else
return false;
}
public boolean isValid() {
return valid;
}
}