Help! Reading a text file in a JAR

Question

How do I read a text file in a jar? (NON-applet).
Following doesn't work:
File f = new File("res\\dictionaryuk.txt");
Neither does this:
InputStream in = this.getClass().getResourceAsStream("res\\dictionary.txt");
(I read somewhere else here that one should use resources instead of files in a JAR, but I'm not certain about that, or why?)
It's not the pathname because I've tried everything.
"res\\dictionaryuk.txt"
"res/dictionaryuk.txt"
"\\res\\dictionaryuk.txt"
"\\dictionaryuk.txt"
"dictionaryuk.txt"
...you name it
And yes, the text file IS in the JAR.
Any suggestions? Sample code?

Answer 1

Okay, here is a quick example of how to do it that I tested and works...
I get the same values for the ZipEntry method and the InputStream.available method, but the available method is used for slightly different purposes, and may not always return the full size of the file (I have seen some instances where the value returned was always 0). Anyway, here it goes:
import java.io.File;
import java.io.IOException;
import java.io.InputStream;
import java.util.jar.JarFile;
import java.util.zip.ZipEntry;
public class JARFileReading
     public static void main(String[] args)
          String fileName = "res/TestApplet.html";
          InputStream is = JARFileReading.class.getResourceAsStream(fileName);
          try
               System.out.println("Input Stream.avaliable: "+is.available());
               if (is != null)
                    is.close();
          } catch (IOException e)
               e.printStackTrace();
          File jarFile = new File("JarFile.jar");
          if (!jarFile.exists()) System.exit(0);
          JarFile theJar = null;
          try
               theJar = new JarFile(jarFile);
               ZipEntry theFile = theJar.getEntry(fileName);
               System.out.println("Zip Entry.getSize: "+theFile.getSize());
               System.out.println("Zip Entry.getCompressedSize: "+theFile.getCompressedSize());
               is = theJar.getInputStream(theFile);
               System.out.println("JarFile.getInputStream.available: "+is.available());
               if (theJar != null)
                    theJar.close();
               if (is != null)
                    is.close();
          } catch (IOException e1)
               e1.printStackTrace();
}