Read the directory from an applet

[dimitryous]

Hello,

I just would like to read a specific (/Downloads/) directory of the client machine in order to get the latest file:
My code look for text files like "quotes.txt , quotes-1.txt, ... quotes-42.txt etc..." and would like to point to the last one (quotes-42.txt).

I know that I will have to sign the applet later...

Right now I'm able to read a specific file (quotes.txt) but what if there is more in the sequence?

A loop, but how to get out of it?

Thank you much.

[JosAH]

Hello,

I just would like to read a specific (/Downloads/) directory of the client machine in order to get the latest file:
My code look for text files like "quotes.txt , quotes-1.txt, ... quotes-42.txt etc..." and would like to point to the last one (quotes-42.txt).

I know that I will have to sign the applet later...

Right now I'm able to read a specific file (quotes.txt) but what if there is more in the sequence?

A loop, but how to get out of it?

Thank you much.

Read all about it in the File class API documentation; pay special attention
to its list or listFiles methods.

kind regards,

Jos

[dimitryous]

Read all about it in the File class API documentation; pay special attention
to its list or listFiles methods.

kind regards,

Jos

Almost got it but...

Here is my code:

    public static void listDirectory( File the_Directory ) {
        //System.out.println ("132: " + the_Directory.getAbsolutePath());
        int max = 0;
        String the_String = "quotes";
        if ( the_Directory.isDirectory ( ) ) {
                File[] list = the_Directory.listFiles();
                if (list != null) {
                    //System.out.println ("137: " + the_Directory.getAbsolutePath());
                    for ( int i = 0; i < list.length; i++) {
                            // recursive call to sub-directories if any
                            listDirectory( list[i] );
                    } 
                } else {
                    System.err.println("Error reading directory: " + the_Directory);
                }
        }
        else {
            String the_S_File = the_Directory.getAbsolutePath(); // got a file
            String[] members = the_S_File.split("/");
 
            for ( int i = 0; i < members.length; i++) {
                if (members.length == 3 & i == 2) { // at the second level ?
 
                    // System.out.println( "quotes-39.txt".indexOf( the_String ) ); // 0
                    if (members[2].indexOf( the_String ) == 0) { // like quotes-39.txt ?
                        if (members[2].length() > the_String.length() + 4) { // live out quotes.txt
                            //System.out.println(members[2]);
                            String[] sub_members = members[2].split("-");
                            for ( int j = 0; j < 2; j++) {
                                if (j==1) {
                                    int the_pos = sub_members[j].indexOf(".");
                                    String the_int_S = sub_members[j].substring( 0 , the_pos );
                                    int k = Integer.parseInt( the_int_S , 10 );
 
                                    if ( max < k ) {
                                        max = k; // bug here : max made a reset ***
                                    }
 
                                    System.out.println( k + " " + max + " " + sub_members[j]);
 
                                }
                            }
                        }
                    }
                }
            }
        }
    }

Don't get the max value out of it because of the recursive stuff...

Any idea?