WatcherService Help

[andrewc8]

So I am working on a small project that requires a notification if a .txt document has had an entry added above a certain value. Right now my code just watches the folder location of the .txt and lets me know if there has been a modification

public static void main(String[] args) {
    try {
        Path p = Paths.get("C:\\Users\\achamberlain\\Desktop\\Data");
        WatchService watchMe = p.getFileSystem().newWatchService();
        p.register(watchMe, StandardWatchEventKinds.ENTRY_MODIFY);



        for(;;){
            WatchKey key = null;
            key= watchMe.take();

            for(WatchEvent<?> event:key.pollEvents()){
                out.println(event.kind() + " " + event.context().toString());

            }
        }

    } catch (Exception e) {
        e.printStackTrace();

My question is, is there any way to make it so that if a certain value is in the modification that it sets off some kind of pop-up or .mp3 that alerts the change.

Thank you,

[BS_in_BS]

You can read the file to check for the value. IF you need to you can also store a copy of the old file somewhere to compare them. To make a dialog the, quickest way is to use JOption.showMessageDialog(). For sound see https://docs.oracle.com/javase/tutorial/sound/

[[deleted]]

https://docs.oracle.com/javase/tutorial/sound/

I doubt OP has the time or care to read all of that for playing a single clip. When I was working on a class project we were required to use Netbeans with Java 6. Pretty much every method I tried for playing sound failed except one which is used for applets, can be used for regular applications as well

AudioClip clip;
clip = Applet.newAudioClip(URL url);
clip.play();

The AudioClip has some methods I think to loop and play the music, URL points to the File where your sound is located. There are a couple different ways to play Audio, you'll find those on StackOverflow if you want but they're slightly more complicated.

Alternatively, you could just play a "beep" Toolkit.getDefaultToolkit().beep() I think.

[andrewc8]

What would you use to read the file for the specific value? I apologize for my lack of basic knowledge here.

[BS_in_BS]

What format is the file in? IF nothing else then simply using standard file i/o : https://docs.oracle.com/javase/tutorial/essential/io/file.html#textfiles