//: c12:MakeDirectories.java // Demonstrates the use of the File class to // create directories and manipulate files. // {Args: MakeDirectoriesTest} // From 'Thinking in Java, 3rd ed.' (c) Bruce Eckel 2002 // www.BruceEckel.com. See copyright notice in CopyRight.txt. import com.bruceeckel.simpletest.*; import java.io.*; public class MakeDirectories { private static Test monitor = new Test(); private static void usage() { System.err.println( "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"); 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; } count--; while(++count < args.length) { 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); } if(args.length == 1 && args[0].equals("MakeDirectoriesTest")) monitor.expect(new String[] { "%% (MakeDirectoriesTest exists"+ "|created MakeDirectoriesTest)", "%% Absolute path: " + "\\S+MakeDirectoriesTest", "%% Can read: (true|false)", "%% Can write: (true|false)", " getName: MakeDirectoriesTest", " getParent: null", " getPath: MakeDirectoriesTest", "%% length: \\d+", "%% lastModified: \\d+", "It's a directory" }); } } ///:~