Java file/directory Listener?

Question

how can I implement a Listener which get notifified when file in direcory changes or added or deleted?

Answer 1

You can write java code and implement a timer to do this... see the link below for a good example.

Answer 2

1) Put the initial size of the file in a textfile and save it.

2) Develop a java program to check the size of the file

3) Compare the size with the initial size in the text file.

4) If the size is changed then trigger the listener.

5) In order for this process to happen automatically, generate a batch file with the commands to compile and run the java program.

6) Now put the batch file in the scheduled task and schedule it periodically.

7) Now when the batch runs it automatically check for the changes in file and if there is any change then triggers the Listener.

Answer 3

nicely i think of it incredibly is extra advantageous in case you acquire some java e book and initiate analyzing and dealing out the given classes. To be precise, there r 3 sorts of listeners: a million. Command Listener:-For Buttons,e.t.c 2. merchandise Listener:-For ChoiceBoxes,e.t.c 3. Mouse Listener:-for fairly much each and every thing achieved by utilising mouse like press mouse, drag mouse,e.t.c. it incredibly is extra advantageous if u initiate analyzing those form of listeners in information after which ask for any queries.... study nicely......