Deleting Full Directories?

[Krocker]

hey guys, i have been working on a program that deletes specific files such as temporary files. Im making the mian structure first, but i keep getting an error at
for (String temp;files;); it says that files is not a bolean, but in the example form which i used to help me it shows that the files is in the correct place. heres my codes:

code:

package delete.file; import java.io.File; import java.io.IOException; public class DeleteDirectoryExample {     private static final String SRC_FOLDER = "C:\\Nexon/BlackCipher";     public static void main (String[] args)     {         File directory = new File (SRC_FOLDER);         //make sure directory exists         if (!directory.exists ())         {             System.out.println ("Directory does not exist.");             System.exit (0);         }         else         {             try             {                 delete (directory);             }             catch (IOException e)             {                 e.printStackTrace ();                 System.exit (0);             }         }         System.out.println ("Done");     }     public static void delete (File file)         throws IOException     {         if (file.isDirectory ())         {             //directory is empty, then delete it             if (file.list ().length == 0)             {                 file.delete ();                 System.out.println ("Directory is deleted : "                         + file.getAbsolutePath ());             }             else             {                 //list all the directory contents                 String files[] = file.list ();                 for (String temp;files;); // HERES THE ERROR                 {                     //construct the file structure                     File fileDelete = new File (file, temp);                     //recursive delete                     delete (fileDelete);                 }                 //check the directory again, if empty then delete it                 if (file.list ().length == 0)                 {                     file.delete ();                     System.out.println ("Directory is deleted : "                             + file.getAbsolutePath ());                 }             }         }         else         {             //if file, then delete it             file.delete ();             System.out.println ("File is deleted : " + file.getAbsolutePath ());         }     } }