validar cpf java code example
Example: validate cpf java
package meuPacote;
import java.util.InputMismatchException;
public class ValidaCPF {
public static boolean isCPF(String CPF) {
if (CPF.equals("00000000000") ||
CPF.equals("11111111111") ||
CPF.equals("22222222222") || CPF.equals("33333333333") ||
CPF.equals("44444444444") || CPF.equals("55555555555") ||
CPF.equals("66666666666") || CPF.equals("77777777777") ||
CPF.equals("88888888888") || CPF.equals("99999999999") ||
(CPF.length() != 11))
return(false);
char dig10, dig11;
int sm, i, r, num, peso;
try {
sm = 0;
peso = 10;
for (i=0; i<9; i++) {
num = (int)(CPF.charAt(i) - 48);
sm = sm + (num * peso);
peso = peso - 1;
}
r = 11 - (sm % 11);
if ((r == 10) || (r == 11))
dig10 = '0';
else dig10 = (char)(r + 48);
sm = 0;
peso = 11;
for(i=0; i<10; i++) {
num = (int)(CPF.charAt(i) - 48);
sm = sm + (num * peso);
peso = peso - 1;
}
r = 11 - (sm % 11);
if ((r == 10) || (r == 11))
dig11 = '0';
else dig11 = (char)(r + 48);
if ((dig10 == CPF.charAt(9)) && (dig11 == CPF.charAt(10)))
return(true);
else return(false);
} catch (InputMismatchException erro) {
return(false);
}
}
public static String imprimeCPF(String CPF) {
return(CPF.substring(0, 3) + "." + CPF.substring(3, 6) + "." +
CPF.substring(6, 9) + "-" + CPF.substring(9, 11));
}
}