Help on how to treat the \' string ?

Question

Hi,
i have a string which i have to save it to a file. It happens that the string can contains \' (2 chars = \ and ' )
I save it to a file performing:
try {
FileOutputStream fos = new FileOutputStream(aFileName);
Writer out = new OutputStreamWriter(fos, "UTF8");
out.write(cadena);
out.close();
catch (IOException eIO){
eIO.printStackTrace();
And i read it from the file:
StringBuffer buffer = new StringBuffer();
try {
     FileInputStream fis = new FileInputStream(aFileName);
     InputStreamReader isr = new InputStreamReader(fis,"UTF8");
     Reader in = new BufferedReader(isr);
     int ch;
     while ((ch = in.read()) > -1) {
buffer.append((char)ch);
     in.close();
     return buffer.toString();
} catch (IOException e) {
     e.printStackTrace();
     return null;
After reading the file the contents does not include the \' string just ' only. The \ is missing and obviously
it is not the same string previously saved.
How can i solve this problem? Early I suspected the problem was saving to the file with out.write(cadena); so i replace the code with another which saves char by char the string but with the same final result.
Many thanks in advance,
Marla.

Answer 1

Escape characters. Okey.
This is the string R\'U*��� how can i do to insert a \ before the one in the string ?
That is my problem?
Thanks.