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Portuguese Citizen Card number check for Java
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public static boolean validateNumeroDocumentoCC(String numeroDocumento){ | |
// C# Source: https://www.autenticacao.gov.pt/documents/20126/115760/Valida%C3%A7%C3%A3o+de+N%C3%BAmero+de+Documento+do+Cart%C3%A3o+de+Cidad%C3%A3o.pdf | |
int sum = 0; | |
boolean secondDigit = false; | |
if (numeroDocumento == null) | |
throw new IllegalArgumentException("Número de documento não pode ser null."); | |
if(numeroDocumento.length() != 12) | |
throw new IllegalArgumentException("Tamanho inválido para número de documento."); | |
for (int i = numeroDocumento.length()-1; i >= 0; --i){ | |
int valor = getNumberFromChar(numeroDocumento.charAt(i)); | |
if (secondDigit){ | |
valor *= 2; | |
if (valor > 9) | |
valor -= 9; | |
} | |
sum += valor; | |
secondDigit = !secondDigit; | |
} | |
return (sum % 10) == 0; | |
} | |
public static int getNumberFromChar(char letter){ | |
switch(letter) { | |
case '0' : return 0; | |
case '1' : return 1; | |
case '2' : return 2; | |
case '3' : return 3; | |
case '4' : return 4; | |
case '5' : return 5; | |
case '6' : return 6; | |
case '7' : return 7; | |
case '8' : return 8; | |
case '9' : return 9; | |
case 'A' : return 10; | |
case 'B' : return 11; | |
case 'C' : return 12; | |
case 'D' : return 13; | |
case 'E' : return 14; | |
case 'F' : return 15; | |
case 'G' : return 16; | |
case 'H' : return 17; | |
case 'I' : return 18; | |
case 'J' : return 19; | |
case 'K' : return 20; | |
case 'L' : return 21; | |
case 'M' : return 22; | |
case 'N' : return 23; | |
case 'O' : return 24; | |
case 'P' : return 25; | |
case 'Q' : return 26; | |
case 'R' : return 27; | |
case 'S' : return 28; | |
case 'T' : return 29; | |
case 'U' : return 30; | |
case 'V' : return 31; | |
case 'W' : return 32; | |
case 'X' : return 33; | |
case 'Y' : return 34; | |
case 'Z' : return 35; | |
} | |
throw new IllegalArgumentException("Valor inválido no número de documento."); | |
} |
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