hi!
why not search the resulting string for "Directory of "?
btw, your program isn't conform to java's slogan "write once, run anywhere".
it will only run on windows system with the dir prrogram installed and some
potential users of your program might not have the permissions to execute
"dir" so this won't eork for them.
-mw
----- Original Message -----
From: "karthikeyan" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Monday, December 31, 2001 3:59 PM
Subject: Java Question Once Again
| Hi,
|
| Thanx for your guys help. I have also seen this example from Thinking
in
| Java and i know how to retrieve file information but then my requirement
is
| just to get :
|
| - [directory name] which will be shown when we execute dir filename /s,
this
| i am doing programmatically using Runtime class exec command and i some
how
| get the result of the search in a String. Since i am doing a file search
| operation i am using this particular command to retrieve those file
| location, once i get that location then i can get all the information of
| those files. Code is like this :
|
|
| String filename = "wherever.mp3";
| Runtime r = Runtime.getRuntime();
| Process p = r.exec("dir " + filename + " /s");
| BufferedReader kbdInput =
| new BufferedReader(new InputStreamReader(p.getInputStream()));
| String cmdOutput;
| while((cmdOutput = kbdInput.readLine()) != null)
| System.out.println(line);
|
| now when i print [ String line ] i get output something like this:
|
| Directory of C:\
|
| 12/30/01 07:54p 3,174,400 whenever.mp3
| 1 File(s) 3,174,400 bytes
|
| Directory of C:\mp3
|
| 12/30/01 07:54p 3,174,400 whenever.mp3
| 1 File(s) 3,174,400 bytes
|
| Total Files Listed:
| 2 File(s) 6,348,800 bytes
| 959,447,040 bytes free
|
| from this output i just need
|
| 1. c:\ - directory name for the first result.
| 2. c:\mp3 - directory name for the second result.
|
| Since there is no delimiters in the above output and there is no
| consistency in spacing i having problem in retrieving the above directory
| names.
|
| Guys i am also trying.
|
| Looking forward for your response and wish you all a Happy and
| Prosperous New Year 2002.
|
| With Regards,
|
| karthikeyan.
|
| ----- Original Message -----
| From: Jose F. Osorio <[EMAIL PROTECTED]>
| To: <[EMAIL PROTECTED]>
| Sent: Monday, December 31, 2001 12:52 AM
| Subject: Re: Java Question
|
|
| >
| > This should give you enough hits to code what you need.
| >
| > Good Luck.
| >
| >
| > file://: c11:MakeDirectories.java
| > // From 'Thinking in Java, 2nd ed.' by Bruce Eckel
| > // www.BruceEckel.com. See copyright notice in CopyRight.txt.
| > // Demonstrates the use of the File class to
| > // create directories and manipulate files.
| > import java.io.*;
| >
| > public class MakeDirectories {
| > private final static String usage =
| > "Usage:MakeDirectories path1 ...\n" +
| > "Creates each path\n" +
| > "Usage:MakeDirectories -d path1 ...\n" +
| > "Deletes each path\n" +
| > "Usage:MakeDirectories -r path1 path2\n" +
| > "Renames from path1 to path2\n";
| > private static void usage() {
| > System.err.println(usage);
| > System.exit(1);
| > }
| > private static void fileData(File f) {
| > System.out.println(
| > "Absolute path: " + f.getAbsolutePath() +
| > "\n Can read: " + f.canRead() +
| > "\n Can write: " + f.canWrite() +
| > "\n getName: " + f.getName() +
| > "\n getParent: " + f.getParent() +
| > "\n getPath: " + f.getPath() +
| > "\n length: " + f.length() +
| > "\n lastModified: " + f.lastModified());
| > if(f.isFile())
| > System.out.println("it's a file");
| > else if(f.isDirectory())
| > System.out.println("it's a directory");
| > }
| > public static void main(String[] args) {
| > if(args.length < 1) usage();
| > if(args[0].equals("-r")) {
| > if(args.length != 3) usage();
| > File
| > old = new File(args[1]),
| > rname = new File(args[2]);
| > old.renameTo(rname);
| > fileData(old);
| > fileData(rname);
| > return; // Exit main
| > }
| > int count = 0;
| > boolean del = false;
| > if(args[0].equals("-d")) {
| > count++;
| > del = true;
| > }
| > for( ; count < args.length; count++) {
| > File f = new File(args[count]);
| > if(f.exists()) {
| > System.out.println(f + " exists");
| > if(del) {
| > System.out.println("deleting..." + f);
| > f.delete();
| > }
| > }
| > else { // Doesn't exist
| > if(!del) {
| > f.mkdirs();
| > System.out.println("created " + f);
| > }
| > }
| > fileData(f);
| > }
| > }
| > } ///:~
| > -----Original Message-----
| > From: A mailing list for discussion about Sun Microsystem's Java Servlet
| API
| > Technology. [mailto:[EMAIL PROTECTED]]On Behalf Of
karthikeyan
| > Sent: Sunday, December 30, 2001 11:32 AM
| > To: [EMAIL PROTECTED]
| > Subject: Java Question
| > Importance: High
| >
| >
| > Hi All,
| >
| > I know its wrong to ask java question in servlet-interest but still i
| > doing this because it is urgent. I have a problem in parsing a string.
| It
| > is like this:
| >
| > I am developing a file search program in java, it is just a part of my
| > module. It should do some thing like this if you give file name as
| > parameter to this program it should search through your hard disk and
give
| > you all information regarding the file for example - file name, file
size,
| > date of last modification, file belongs to which user etc.
| >
| > What i did right now is, i used Process and Runtime class to run my
| > command "dir filename /s" which of course returned me the output of the
| > command. It is something like this :
| >
| > C:\>dir whenever.mp3 /s
| > Volume in drive C has no label.
| > Volume Serial Number is 2143-080A
| >
| >
| > Directory of C:\
| >
| > 12/30/01 07:54p 3,174,400 whenever.mp3
| > 1 File(s) 3,174,400 bytes
| >
| > Directory of C:\mp3
| >
| > 12/30/01 07:54p 3,174,400 whenever.mp3
| > 1 File(s) 3,174,400 bytes
| >
| > Total Files Listed:
| > 2 File(s) 6,348,800 bytes
| > 959,447,040 bytes free
| >
| > C:\>
| >
| > I got the above output in a string called [ cmdOutput ]. What i
really
| > want is to get only [ c:\ ] and [ c:\mp3 ] and put them in a Vector. So
| now
| > this vector has only 2 elements - c:\ and c:\mp3.
| >
| > What i will do afterwards is i will join c:\ with the filename [
| > whenever.mp3 ] pass it to File class and get all the information, same
| > applies to c:\mp3.
| >
| > The above is just a sample but actual file search can return a lot of
| > Directory name.
| >
| > You can also suggest me some other way of retrieving file information
| and
| > storing it in an Vector or Hashtable.
| >
| > Looking forward for yours early response.
| >
| > With Regards,
| >
| > karthikeyan.
| >
| >
|
___________________________________________________________________________
| > To unsubscribe, send email to [EMAIL PROTECTED] and include in the
| body
| > of the message "signoff SERVLET-INTEREST".
| >
| > Archives: http://archives.java.sun.com/archives/servlet-interest.html
| > Resources: http://java.sun.com/products/servlet/external-resources.html
| > LISTSERV Help: http://www.lsoft.com/manuals/user/user.html
|
|
___________________________________________________________________________
| To unsubscribe, send email to [EMAIL PROTECTED] and include in the
body
| of the message "signoff SERVLET-INTEREST".
|
| Archives: http://archives.java.sun.com/archives/servlet-interest.html
| Resources: http://java.sun.com/products/servlet/external-resources.html
| LISTSERV Help: http://www.lsoft.com/manuals/user/user.html
|
___________________________________________________________________________
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