Another open source app with a bit of similar goal: https://apps.kde.org/itinerary/ The collaboration part is not that developed (but does exist based on Matrix as decentralized and end to end encrypted storage). That works very well is ticket extraction for hotels, train or flight + search for connection using public transport APIs. Disclaimer: I'm involved with that app. - Source: Hacker News / about 1 year ago

Looks good! I may sign up. Interestingly, I had a brief look for open source alternatives and found that KDE Itinerary[0] may do a similar thing, and that the same code has been re-used in a Nextcloud Mail extension[1]. I don't use either so haven't been able to test directly yet. But I did use a CLI tool based on the same KDE code[2] and while it doesn't output iCal it does seem to correctly extract the details... - Source: Hacker News / over 3 years ago

IDK if his Udemy course ("Spring Boot E-Commerce Ultimate Course") is relevant to what you are trying to learn, but I want to commend Nam Ha Minh as someone who has answered every question I asked about the course material within 24 hours. There aren't many teachers like that, it seems, so it seems worth praising those that do this. Maybe other teachers will feel more encouraged to follow suit if they see the... Source: about 4 years ago

From what I read, there are examples to work though, so you will get hands-on coding experience. Even more important, one review refers to the author replying to a reader with a question about one of the examples. Finding teachers that actually respond is rare, in my experience. I've only found one with such a commitment to his students, to date: Nam Ha Minh of the codejava website and author of a few udemy... Source: over 4 years ago

Of the various tutorial sites, I have found the content at codejava.net to be reliable and well written. The author doesn't just regurgitate documentation specs and examples, but puts time into creating additional, original examples that help clarify things. He has many tutorials that are Spring based. I don't know what books to recommend--I've been learning Spring most via tutorials and Udemy classes. Source: over 4 years ago

But after formation of my jar file, it is not running. I know that this is silly application but I am not getting why my application is not running. So can you look at my code and can give where I am making mistake. I am making some mistake in making jar file. I have taken part of code from codejava.net and so package name is I kept net.codejava.networking. Source: about 5 years ago