how to work java code both on Windows and Unix

[kajal mukergi]

this is my code

 
for (String file : files) {
File destinationLocation = new File(_destinationLocation);
String _destpath = destinationLocation.getPath();
  _destpath += '\\';  ----------------------------------//hardcoded here to get the              -------------------------------------------------//image of "C:\xyz\filename"                                     
 
  _destpath += file;
                    }

here i am getting the _destinationLocation value from .properties file

as C:\xyz this fine for window..
and working fine here
but in UNIX it is failing as
the directory stucture is.. "./xyx"
so my code is breaking
can any one tell how to handle..

or how to diferentiate whether it is unix or window os

[Joe Ess]

Use Unix-style paths on both platforms. Java will do the conversion for you on Windows.

[Norm Radder]

What if you have mulitple drives? C: D: etc
On Linux, do all paths start from a single root?
Would that mean that code has to be sensitive to which OS its on?

There are File fields that define path separators that should be used.
And System properties such as user.dir

[Chandan Ghosh]

Originally posted by kajal mukergi:
this is my code

 
for (String file : files) {
File destinationLocation = new File(_destinationLocation);
String _destpath = destinationLocation.getPath();
  _destpath += '\\';  ----------------------------------//hardcoded here to get the              -------------------------------------------------//image of "C:\xyz\filename"                                     
 
  _destpath += file;
                    }

here i am getting the _destinationLocation value from .properties file

as C:\xyz this fine for window..
and working fine here
but in UNIX it is failing as
the directory stucture is.. "./xyx"
so my code is breaking
can any one tell how to handle..

or how to diferentiate whether it is unix or window os

[Chandan Ghosh]

Originally posted by kajal mukergi:
this is my code

 
for (String file : files) {
File destinationLocation = new File(_destinationLocation);
String _destpath = destinationLocation.getPath();
  _destpath += '\\';  ----------------------------------//hardcoded here to get the              -------------------------------------------------//image of "C:\xyz\filename"                                     
 
  _destpath += file;
                    }

here i am getting the _destinationLocation value from .properties file

as C:\xyz this fine for window..
and working fine here
but in UNIX it is failing as
the directory stucture is.. "./xyx"
so my code is breaking
can any one tell how to handle..

or how to diferentiate whether it is unix or window os

Hi,

Use File.separator instead of hard coded string which will enable your code to run in both env.

for (String file : files) {
File destinationLocation = new File(_destinationLocation);
String _destpath = destinationLocation.getPath();
_destpath += File.separator;

_destpath += file;
}

[Steve Luke]

The best solution for this sort of thing is to not use hard-coded paths for anything, since they are system dependent. The best option is to store the file in a location inside your application's class path and use this.getClass().getResource("/xyz") or this.getClass().getResourceAsStream("/xyz");

[Bear Bibeault]

When using the classpath is not feasible, factoring system-dependent paths into properties files may be an option.

[Peter Johnson]

You could use the "file.separator" system property (instead of hard-coding "\\" or "/") - it is set properly based on the host os. Example:

String _destpath = destinationLocation.getPath()
 + System.getProperty("file.separator")
 + file;

[Campbell Ritchie]

The file.separator property is copied in the java.io.File class, where it is maybe easier to find.