How can i determine the working path within the jdeveloper9 project?

hello
my directory structure as following:
D:\myjava\testWorkspace
D:\myjava\testWorkspace\Project1
D:\myjava\testWorkspace\Project1\src
D:\myjava\testWorkspace\Project1\public_html
D:\myjava\testWorkspace\Project1\classes
in my program,i have following code block:
File file = new File("D:/myjava/testWorkspace/Project1/catalog.xml");
InputSource src = new InputSource(new FileInputStream(file));
SaxCatalogUnmarshaller saxUms = new SaxCatalogUnmarshaller();
XMLReader rdr = XMLReaderFactory.
createXMLReader("org.apache.xerces.parsers.SAXParser");
rdr.setContentHandler(saxUms);
as you can see,i must specify the absolute file name within the File class constructor,i want to use the relative file path,but it don't work.
i wonder where i should put the "catalog.xml" file and how to specify its path?
thanks

You can specify the working directory for your program in the Project Settings dialog, on the Runner panel. The text field is labeled "Run Directory".
-Liz

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