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Java Source | 2000-05-25 | 4.2 KB | 116 lines |
- //: MakeDirectories.java
- //////////////////////////////////////////////////
- // Copyright (c) Bruce Eckel, 1998
- // Source code file from the book "Thinking in Java"
- // All rights reserved EXCEPT as allowed by the
- // following statements: You can freely use this file
- // for your own work (personal or commercial),
- // including modifications and distribution in
- // executable form only. Permission is granted to use
- // this file in classroom situations, including its
- // use in presentation materials, as long as the book
- // "Thinking in Java" is cited as the source.
- // Except in classroom situations, you cannot copy
- // and distribute this code; instead, the sole
- // distribution point is http://www.BruceEckel.com
- // (and official mirror sites) where it is
- // freely available. You cannot remove this
- // copyright and notice. You cannot distribute
- // modified versions of the source code in this
- // package. You cannot use this file in printed
- // media without the express permission of the
- // author. Bruce Eckel makes no representation about
- // the suitability of this software for any purpose.
- // It is provided "as is" without express or implied
- // warranty of any kind, including any implied
- // warranty of merchantability, fitness for a
- // particular purpose or non-infringement. The entire
- // risk as to the quality and performance of the
- // software is with you. Bruce Eckel and the
- // publisher shall not be liable for any damages
- // suffered by you or any third party as a result of
- // using or distributing software. In no event will
- // Bruce Eckel or the publisher be liable for any
- // lost revenue, profit, or data, or for direct,
- // indirect, special, consequential, incidental, or
- // punitive damages, however caused and regardless of
- // the theory of liability, arising out of the use of
- // or inability to use software, even if Bruce Eckel
- // and the publisher have been advised of the
- // possibility of such damages. Should the software
- // prove defective, you assume the cost of all
- // necessary servicing, repair, or correction. If you
- // think you've found an error, please email all
- // modified files with clearly commented changes to:
- // Bruce@EckelObjects.com. (Please use the same
- // address for non-code errors found in the book.)
- /////////////////////////////////////////////////
-
- // 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);
- }
- }
- } ///:~