Writing to a File

[Dreamer]

I need to write to a file without losing the contents of said file. What is the correct code? This is the code I'm using, but when I re-run the program, the file will lose its previous contents:

import java.io.*;
class abc 
  {
     public static void main(String[] args) throws IOException
      {  
         BufferedReader a =new BufferedReader(new InputStreamReader(System.in));
         System.out.println("Please type something...");
         String b = a.readLine();
         PrintStream c = new PrintStream(new FileOutputStream("abc.txt"));
         c.println(b);
         c.close();
      }
  }

Thanks.

[major]

try this, hope it helps,

try {
        BufferedWriter out = new BufferedWriter(new FileWriter("filename", true));
        out.write("aString");
        out.close();
    } catch (IOException e) {
    }

[destin]

The FileOutputStream class has an overloaded constructor that you can use to set if you want to append or not. You can view it here.

[Dreamer]

Thanks very much destin, it worked fine. I chose the FileOutputStream overloaded constructor you suggested.

[Dreamer]

Why is it that when I use the new line character (\n), a small box is being created instead of going to a fresh line (using notepad)?

[Phaelax]

I think thats just a notepad thing. Try opening in wordpad and see if appears differently.

[destin]

Why is it that when I use the new line character (\n), a small box is being created instead of going to a fresh line (using notepad)?

I would recommend using PrintWriter rather than BufferedWriter. The PrintWriter class provides a println method which will print, with a new line after it; I'm pretty sure this eliminates the box problem.

[Dreamer]

Thx for your quick reply. Actually I had switched to the FileWriter class, which I guess is similar to the PrintWriter one. However in Wordpad everything's ok, the problem lies with Notepad.

Thx again guys.