List of files in subdirectories

Question

I am trying to create an array of strings to contain a list of files in a particular directory. The only problem is that I am having trouble getting down to the subdirectories. I think I am going in the right direction here is some of my code:
public void readDir()
          String dir = "F:\\APPS\\SPCII\\DATA\\";
          File directory = new File(dir);
          String[] M = directory.list();
          for (int index = 0; index < M.length; index++)
               System.out.println (M[index]);
          for(int i = 0; i < M.length; i++)
               File directory1 = new File(M);
               String[] P = directory1.list();
          for (int index = 0; index < P.length; index++)
               System.out.println (P[index]);
     }//readDir
I can get all the files in the parent directory but when I go into the subdirectories such as files Array P is holding and try to print them out I get an error that it cannot resolve the symbol P. Any help is appricieated.

Answer 1

Doesn't anybody read the fine instructions any more? Just above where you posted this unformatted code it says "You can format the text of your message by using a number of special tokens". If you had read that you would have been able to format your code like this:public void readDir()
  String dir = "F:\\APPS\\SPCII\\DATA";
  File directory = new File(dir);
  String[] MACHINE = directory.list();
  for (int index = 0; index < MACHINE.length; index++)
    System.out.println (MACHINE[index]);
  for(int i = 0; i < MACHINE.length; i++)
    File directory1 = new File(MACHINE);
String[] P = directory1.list(); // here you declare P
} // this is the end of the block where P is declared, P is not known outside this block
// you probably want this } to go after the next for loop
for (int index = 0; index < P.length; index++) // so you can't use P inside this block
System.out.println (P[index]);
}//readDir