Write a file in android

gistfile1.java

public static void write (String filename,Context c,String string) throws IOException{
    try {
        FileOutputStream fos =  c.openFileOutput(filename, Context.MODE_PRIVATE);
        fos.write(string.getBytes());
        fos.close();
    } catch (FileNotFoundException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    }
}