87 lines
2.3 KiB
Java
87 lines
2.3 KiB
Java
// files/MakeDirectories.java
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// ©2016 MindView LLC: see Copyright.txt
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// We make no guarantees that this code is fit for any purpose.
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// Visit http://mindviewinc.com/Books/OnJava/ for more book information.
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// Demonstrates using the File class to
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// create directories and manipulate files.
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// {Args: MakeDirectoriesTest}
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import java.io.*;
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public class MakeDirectories {
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private static void usage() {
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System.err.println(
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"Usage:MakeDirectories path1 ...\n" +
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"Creates each path\n" +
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"Usage:MakeDirectories -d path1 ...\n" +
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"Deletes each path\n" +
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"Usage:MakeDirectories -r path1 path2\n" +
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"Renames from path1 to path2");
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System.exit(1);
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}
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private static void fileData(File f) {
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System.out.println(
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"Absolute path: " + f.getAbsolutePath() +
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"\n Can read: " + f.canRead() +
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"\n Can write: " + f.canWrite() +
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"\n getName: " + f.getName() +
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"\n getParent: " + f.getParent() +
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"\n getPath: " + f.getPath() +
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"\n length: " + f.length() +
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"\n lastModified: " + f.lastModified());
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if(f.isFile())
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System.out.println("It's a file");
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else if(f.isDirectory())
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System.out.println("It's a directory");
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}
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public static void main(String[] args) {
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if(args.length < 1) usage();
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if(args[0].equals("-r")) {
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if(args.length != 3) usage();
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File
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old = new File(args[1]),
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rname = new File(args[2]);
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old.renameTo(rname);
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fileData(old);
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fileData(rname);
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return; // Exit main
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}
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int count = 0;
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boolean del = false;
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if(args[0].equals("-d")) {
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count++;
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del = true;
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}
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count--;
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while(++count < args.length) {
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File f = new File(args[count]);
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if(f.exists()) {
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System.out.println(f + " exists");
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if(del) {
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System.out.println("deleting..." + f);
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f.delete();
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}
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}
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else { // Doesn't exist
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if(!del) {
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f.mkdirs();
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System.out.println("created " + f);
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}
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}
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fileData(f);
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}
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}
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}
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/* Output:
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created MakeDirectoriesTest
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Absolute path: C:\Users\Bruce\Documents\GitHub\OnJava\Extra
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ctedExamples\io\MakeDirectoriesTest
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Can read: true
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Can write: true
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getName: MakeDirectoriesTest
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getParent: null
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getPath: MakeDirectoriesTest
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length: 0
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lastModified: 1442352598194
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It's a directory
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*/
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