how to save the directory structure to ArrayList ?

[benny rusli]

Hello people,

i want to know how save the directory structure to ArrayList, and then later i can iterate it, so that the double path or the double string remove and then i will zip the directory with the ZipOutputStream class (of course i give the path to FileInputStream and write it to ZipOutputStream). Which one is better : ArrayList, TreeSet, Vector, List, etc from Collection class ? Can someone give an example how to figure it, any help would be appreciated ?

[Stan James]

I think you'll find you can walk the directory structure and write the files in a single path rather than walk it once to get directory names and walk those to write files. Have you looked at all the methods on File? You'll need a recursive routine something like:

void zipFilesIn( File folder )
{
   fileList = folder.list();
   for each File in fileList
      if file isFolder()
          zipFilesIn( file )
      else
          write file to the zip stream
   next
}

That's not real Java of course ... let me know if it is close enough to get you started coding.

[benny rusli]

Hello people,

thanks for replaying my question, i want to save the path of directory to List Collection because i want to avoid the double entry name such as c:\java\example.txt could occur two time if i zip a large of directory and file(more than 2 GB). And the second reason i want to obtain the directory structure. Have anyone better solution than i have gotten, here is my code :

public void FileList(File file) 
{
    java.util.List list = new ArrayList();
    getFileList(file,list)
    for(int i = 0; i<list.size(); i++)
    String path = (String)list.get(i); 
}
 
public void getFileList(File file,java.util.List list)
{
    if(file.isDirectory())
    {
         getFileList(file,list);
    }
    else
    {
         list.add(file.getPath());
    } 
}

Another solution would be appreciated.