//: 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
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// 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);
}
}
} ///:~ |