萬花筒

import java.io.File;

public class FileDemonstration

{

   public void analyzePath( String path )

   {

      File name = new File(path);

      if ( name.exists() )

      {

         System.out.printf

            ("%s%s\n%s\n%s\n%s\n%s%s\n%s%s\n%s%s\n%s%s\n%s%s",

            name.getName(),"存在",

         (name.isFile()?"是個檔案":"不是個檔案"),

         (name.isDirectory()? "是個資料夾":"不是個資料夾"),

        (name.isAbsolute()? "是個絕對的路徑":"不是個絕對的路徑"),

        "最後修改時間:",name.lastModified(),

       "長度:",name.length(),
  
         "路徑:", name.getPath(),

          "絕對路徑:",name.getAbsolutePath(),

          "上一層:",name.getParent()

            );

         if( name.isDirectory() )

         {     
            String directory[] = name.list();

            System.out.println("\n\n裡面有的檔案或資料夾:\n");

            for ( String directoryName : directory )

            System.out.printf("%s\n", directoryName );
         }

      }

      else

      {

         System.out.printf("%s %s", path, "不存在");

      }

   }

}

public class FileDemonstrationTest

{

   public static void main ( String args[] )

   {

      Scanner input = new Scanner( System.in );
      FileDemonstration application = new FileDemonstration();
      System.out.print("在這邊輸入目錄或檔案名:");
      application.analyzePath( input.nextLine() );

   }

}