Java ProgressBar add value when something is downloaded

Question

I want to add JProgressBar that will fill up during the download process in my program which will download files.

Thr question is How do I make that the progress bar will add the correct amount in the setValue (eg: when it downloads the last file, the JPB will be completed).

Note that the number of files to download are variable.

Answer 1

Call:

progressBar.setMaximum(numberOfFilesToDownload);