Boa tarde, tenho o codigo –
public class Aplicacao {
public static void main(String[] args) throws Exception{
try(Scanner scanner = new Scanner (new FileInputStream ("C:\\Users\\Leonardo\\Desktop\\matriculasSemDV.txt"))){
String comDV = "";
while (scanner.hasNext()) {
String s = scanner.nextLine();
char[] number = s.toCharArray();
int p1 = Character.getNumericValue(number[0]);
int p2 = Character.getNumericValue(number[1]);
int p3 = Character.getNumericValue(number[2]);
int p4 = Character.getNumericValue(number[3]);
int conta1 = ((number[0] * 5) + (number[1] * 4) + (number[2] * 3) + (number[3] * 2)) % 16;
String total = Integer.toHexString((int) conta1).toUpperCase();
comDV = s + "-" + total;
try(PrintWriter pw = new PrintWriter("C:\\Users\\Leonardo\\Desktop\\matriculasComDV.txt")){
pw.writer(comDV);
}
}
}
}
}
– como consigo escrever todos as Strings do arquivo?
o resultado de “comDV” é :
5197 -6
1373 -C
4506 -4
7196 -E
mas meu arquivo só escreve a ultima linha - 7196-E.