Is there any method of JFileChooser which can provide me a file's path with Double slash "\\"?

Question

In Netbeans I am using a JFileChooser to get a file's path. All is OK and its giving me the path as well with single slash \. But I need the path with double slash \\. So my question is, is there already any kind of method which can provide me that type of path? I also don't know the name of the path which has double slash \\. Example- H:\\New folder\\odesk\\odeskViolin4.wav What can I do now?

@MadProgrammer I am trying to play a .wav file after getting the file by the JFileChooser — Tushar Monirul, May 27 '13 at 02:08
That's, you receive a `File` reference from `JFileChooser`, why do you need double dashes? The only reason to use double dashes is when you create the `String` yourself and need to escape the slash character. The requirements make no sense. The in ability to find the file has nothing to do with the slashes... — MadProgrammer, May 27 '13 at 02:17
@MadProgrammer dashes and the slashes, are they same things? I am confused — Tushar Monirul, May 27 '13 at 02:43

Konstantin Yovkov · Accepted Answer · 2013-05-27T02:07:23.850

2

You can simply replace the \ symbols with \\, by using the String.replaceAll() method.

String input = "C:\\Users\\myName"; //special characters have to be escaped.
String doubleSlashed = input.replaceAll("\\\\", "\\\\\\\\");
System.out.println(doubleSlashed);

This will print:

C:\\Users\\myName

Note that String.replaceAll(String pattern, String replacement) takes two arguments and in my example they are four-slashed and eight-slashed strings. This is because the \ symbol is a special character and has to be escaped.

edited May 27 '13 at 02:07

answered May 27 '13 at 01:57

Konstantin Yovkov

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Does your solution actually run for you? I get `java.util.regex.PatternSyntaxException: Unexpected internal error near index 1` when I try. [EDIT: Found a solution, you have to use `input.replaceAll("\\\\", "\\\\\\\\");`](http://stackoverflow.com/questions/1701839/backslash-problem-with-string-replaceall) – Supericy May 27 '13 at 02:03
1

Not the down voter, but this seems a *very* odd requirement. Better to wait for the answer to @Mad's question before rushing in. – Andrew Thompson May 27 '13 at 02:03
@kocko I am having a error `Exception in thread "AWT-EventQueue-0" java.lang.NullPointerException` – Tushar Monirul May 27 '13 at 02:06

score 1 · Answer 2 · answered May 27 '13 at 02:10

Assuming you truly want to replace single backslashes with double backslashes, you could simply do this:

path = path.replace("\\", "\\\\");

However, you may not actually want double backslashes, depending on your purpose. You should at least be aware of this:

String oneBackSlash   = "\\";    //This String will consist of one backslash
String twoBackSlashes = "\\\\";  //This String will consist of two backslashes
//The String below has no double backslashes, only single ones
String path = "H:\\New folder\\odesk\\odeskViolin4.wav";

System.out.println(oneBackSlash);
System.out.println(twoBackSlashes);
System.out.println(path);

Output:

\
\\
H:\New folder\odesk\odeskViolin4.wav

Is there any method of JFileChooser which can provide me a file's path with Double slash "\\"?

2 Answers2