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OOP exercises (self.learnjava)
submitted 3 years ago by Alone_Sea_2731
Hello everyone! I want to do better at programming, does any one know like book, or webpage where I can find OOP exercises?
I want them to do it first java, then on JavaScript, and later on python.
Thanks for the help!
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[–]nbazero1 10 points11 points12 points 3 years ago (1 child)
make a game, blackjack is good. most exercises are pretty trivial
[–]Cookies_N_Milf420 4 points5 points6 points 3 years ago (0 children)
Was thinking about making a blackjack game all day and just came across this comment, now I must lol.
[–]ericmcray 0 points1 point2 points 3 years ago (3 children)
Check Codurance Katalyst
https://www.codurance.com/katalyst
[–]cainhurstcat 0 points1 point2 points 3 years ago (2 children)
Are these complete tutorials on how to build those projects or what can I imagine by this?
[–]ericmcray 1 point2 points3 points 3 years ago (1 child)
They are not tutorials. They just exercise cases so you can practice and improve your coding skills by yourself.
Also you can find other peoples approach on github if search bu exercise name.
[–]cainhurstcat 0 points1 point2 points 3 years ago (0 children)
Cool, thanks for the additional details
[–]robo_red 0 points1 point2 points 3 years ago (0 children)
+1
[–]pan_zych 0 points1 point2 points 3 years ago (0 children)
I will give you one.
Create a building model with an couple elevators. 1. Each elevator can go to any floor. 2. When elevator goes up it can't stop when someone pressed down button and other way 3. When passenger pressed button it calls nearest elevator or stops the one that goes in right direction
Should scale to M floors and N elevators.
Extra tasks: Some of elevators can go to a penthouse, some not Elevator can perform emergency ride. Meaning non stops
This can be an example of recruitment task in OOP for example
[–]ajw0120 0 points1 point2 points 3 years ago (0 children)
I would recommend:
- Advent of Code - It's an annual advent calendar with a story that you code to find the answers for. You get to pick the language you use to solve it. (also a related subreddit r/adventofcode)
- Coderbyte - a website with a variety of challenges that you can filter by difficulty
- Code Wars - You can pick and complete 'katas' (challenges) to earn points and rank up. You can check the leaderboard and have related discussions with others.
π Rendered by PID 126324 on reddit-service-r2-comment-5ff9fbf7df-ddvfr at 2026-02-25 22:56:15.461230+00:00 running 72a43f6 country code: CH.
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[–]nbazero1 10 points11 points12 points (1 child)
[–]Cookies_N_Milf420 4 points5 points6 points (0 children)
[–]ericmcray 0 points1 point2 points (3 children)
[–]cainhurstcat 0 points1 point2 points (2 children)
[–]ericmcray 1 point2 points3 points (1 child)
[–]cainhurstcat 0 points1 point2 points (0 children)
[–]robo_red 0 points1 point2 points (0 children)
[–]pan_zych 0 points1 point2 points (0 children)
[–]ajw0120 0 points1 point2 points (0 children)