When you import an existing project into workspace, tihs project folder go
into the workspace that you define. Then you can read your files relative
to the root of the project. Lets say your project name in the workspace is
FileOperations and your source folder name is src; and you have file that
name is Readme.txt in the src folder then
File file = new File("src\\Readme.txt");
FileInputStream stream = new FileInputStream(file);
stream.read();..
bla bla bla....
PS: This like questions may be post to the Eclipse newsgroup.