Backslash, File directories, and streams

[rp181]

I dont really know where i should post this, so im just posting it here.

I have a program, and part of it is to read a file, find a string, modify the string, and write it back to the file. The string in question is a file directory on windows, so it has backslashes (\).

The originial string from the file:

"string filename" ["C:\\My\\Fike\\Path\\toChange\\ta-00042"]

I read the string using

FileInputStream fis = new FileInputStream((test));
                        BufferedReader is = new BufferedReader(new InputStreamReader(fis));

And read all the lines of the code, split it using

String[] lines = file.split("\n");

I need to change the String with a new filepath, and written out with 2 backslashes, like the originial. I make a new string, and use a string containing the directory. The directory was taken from a JTextField, so only 1 slash.

How can i replace all these '\' with '\\'? Do i need to add more to have the FileWriter print the correct amount of literals?

When the FileInputStream reads the file, does it do anything to the backslashes?

I have tried

String.replaceAll("\\","\\\\");

but i am getting the same output as input with System.out.println();

[mrmatt1111]

just use "/" instead of backslash.

[rp181]

that wouldnt work in windows, would it? Unix uses / and windows uses \

[Fubarable]

that wouldnt work in windows, would it? Unix uses / and windows uses \

Have you tried it?

[Supamagier]

Windows accepts both / and \