Problem writing input to file

Question

This code compiles fine but my input values never write out to the flat file which is called datafile.txt, the datafile.txt gets created but file size shows zero, see code below..
Thanks in advance
import java.io.*;
public class Write2File {
     public static void main (String[] args)
     try {
          OutputStream ostream;
          File outFile = new File("datafile.txt");     
          ostream = new FileOutputStream(outFile);
char userInput;
          System.out.println("Enter Item Number and Quantity");
userInput = (char)System.in.read();
System.in.read();System.in.read();
catch(IOException ex) {
ex.printStackTrace();
}

Answer 1

It's because you're not writing to it. You're writing to System.out, but that is completely different, and it looks like you're not meaning for that to go to the file anyway.
You probably want something more like:
BufferedReader in = new BufferedReader(new InputStreamReader(System.in));
System.out.println("Enter Item Number and Quantity");
String line = in.readLine();
int space = line.indexOf(' ');
int item = Integer.parseInt(line.substring(0, space);
item quantity = Integer.parseInt(line.substring(space + 1));
out = new PrintWriter(new FileWriter(outFile));
out.println("Item Number: " + item + "; quantity: " + quantity);That's written from memory. Check the API to confirm it'll work.