Display the directory and files status, the read and write permissions

my DirectoryTour class is as below:

import java.io.File;


public class DirectoryTour

{


/*
 * traverse method
 * traverse all the nodes from left to right
 * when visit file at first time , make a call on the beforeFirst() method
 * when visit file at second time and still has more children for the same parent node
 * , make a call on the inBetween() method otherwise, make a call on the afterLast() method
 * when visit file at third time , make a call on the afterLast() method  
*/

      public Object traverse (File f, Object info) {

            info = beforeFirst(f, info);

            String[] fArray = new String[5];

            fArray=f.list();

            if (fArray!=null) {

                  for (int i=0; i<fArray.length; i++) {      

                        File fLeft = new File(f.getAbsolutePath() + "\\" + fArray[i]);

                        info = traverse(fLeft, info);

                        if (i<fArray.length-1) {

                              info = inBetween(f, info);
                        }

                  }
            }

            info = afterLast(f, info);

            return null;

      }



/*
 * beforeFirst method
 * print "beforeFirst:" + File name and return null
*/
      public Object beforeFirst (File f, Object info) {
               System.out.println("beforeFirst: " + f.getName());
               return null;
      }



/*
 * inBetween method
 * print "inBetween:" + File name and return null
*/

      public Object inBetween (File f, Object info) {
               System.out.println("inBetween: " + f.getName());
               return null;
      }



/*
 * afterLast method
 * print "afetrLast:" + File name and return null
*/
      public Object afterLast (File f, Object info) {
               System.out.println("afterLast: " + f.getName());
               return null;
      }


 }

Now, i need write a class IndentedList which inherits from DirectoryTour and modifies the methods beforeFirst,
afterLast and inBetween so that you produce an indented list of the directory where each file name is preceded
by a number of spaces which is twice the depth in the directory structure, and where the file name is followed
by a space and the directory status, the read and write permissions in parentheses.

the output might be:
test0 (drw)
    one (drw)
        one-a (-rw)
        one-b (--w)
    three (dr-)
         three-a (-rw)
         two (drw)

any idea?

So what is your question?

I've write a DirectoryTour class, now i need write a class IndentedList which inherits from DirectoryTour, and modifies the methods beforeFirst, afterLast and inBetween to displaythe directory status, the read and write permissions in parentheses.
the output might be:
test0 (drw)
    one (drw)
        one-a (-rw)
        one-b (--w)
    three (dr-)
         three-a (-rw)
         two (drw)

i do not know how to displaythe directory status, the read and write permissions, thanks