Interacting with Filesystems - Beginning Java 7 - page 699

Listing8-3 instantiates File withitspathnamecommand-lineargument,andcallsall
the File methods described in Table 8-2 to learn about the pathname's file/directory.

Listing 8-3. Obtaining file/directory information

import java.io.File;
import java.io.IOException;

import java.util.Date;

class FileDirectoryInfo
{

public static void main(final String[] args) throws
IOException
{

if (args.length != 1)
{

System.err.println("usage: java FileDirectoryInfo
pathname");
return;

}
File file = new File(args[0]);
System.out.println("About "+file+":");
System.out.println("Can execute =

"+file.canExecute());
System.out.println("Can read = "+file.canRead());
System.out.println("Can write = "+file.canWrite());
System.out.println("Exists = "+file.exists());
System.out.println("Is directory =

"+file.isDirectory());
System.out.println("Is file = "+file.isFile());
System.out.println("Is hidden = "+file.isHidden());
System.out.println("Last modified = "+new

Date(file.lastModified()));
System.out.println("Length = "+file.length());

}

}