hi.
my problem is plain simple but still i couldn't make it out.
it's all very basic stringwork (keyboard input, println, ...) but when I get to the point of writing the output file, nothing happens: the text file is created but remain completely blank.
this is my code:
import java.io.*; //Serve per l'input e l'output su file
public class ContoC{
public static void main(String args[]) throws IOException {
String choice, temp;
FileWriter fw;
System.out.println(" CONTO CORRENTE ");
System.out.println();
System.out.println("Insercisci il numero del I conto corrente:");
int a=0;
BufferedReader in = new BufferedReader (new InputStreamReader (System.in));
try {
a=Integer.parseInt(in.readLine());
}catch (IOException e){} //Input I conto
System.out.println("Insercisci il numero del II conto corrente:");
int b=0;
BufferedReader in1 = new BufferedReader (new InputStreamReader (System.in));
try {
b=Integer.parseInt(in1.readLine());
}catch (IOException e){} //Input II conto
System.out.println("Insercisci il numero del III conto corrente:");
int c=0;
BufferedReader in2 = new BufferedReader (new InputStreamReader (System.in));
try {
c=Integer.parseInt(in2.readLine());
}catch (IOException e){} //input III conto
System.out.println();
ContoCorrente c1, c2, c3;
c1=new ContoCorrente(a);
c2=new ContoCorrente(b);
c3=new ContoCorrente(c);
c1.versamento(10000);
c2.versamento(600);
c3.versamento(5000);
c1.prelievo(5000);
c2.prelievo(100);
c3.prelievo(2000);
System.out.println("Saldo CC n." + c1.n_conto() +" --> " + c1.saldo());
System.out.println("Saldo CC n." + c2.n_conto() +" --> " + c2.saldo());
System.out.println("Slado CC n." + c3.n_conto() +" --> " + c3.saldo());
System.out.println();
c1.stampa(a);
System.out.println();
c2.stampa(b);
System.out.println();
c3.stampa(c);
System.out.println();
// Qui inizia la parte di gestione output carattere (-> conti.txt)
System.out.println("\n\nVuoi scrivere i dati sul file «conti.txt» ?\n");
BufferedReader in3 = new BufferedReader (new InputStreamReader (System.in));
try { fw = new FileWriter("conti.txt"); }
catch(IOException exc) {
System.out.println("Errore: il file non si apre!");
return ;
}
do {
System.out.print(": ");
choice = in3.readLine();
if(choice.compareTo("N") == 0) break;
temp = "Conto: " + c1.n_conto() + " - Saldo: " + c1.saldo() + "\r\n";
fw.write(temp);
temp = "Conto: " + c2.n_conto() + " - Saldo: " + c2.saldo() + "\r\n";
fw.write(temp);
temp = "Conto: " + c3.n_conto() + " - Saldo: " + c3.saldo() + "\r\n";
fw.write(temp);
} while(choice.compareTo("N") !=0);
fw.close();
}
}for debugging i added 3 System.out.println to check the temp string and it was ok.
the only problem seems to be writing on the file
