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CodeGym /Courses /Java Core /Useful links from the Professor — 13

Useful links from the Professor — 13

Java Core
Level 3 , Lesson 9
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"Amigo, if you keep clicking on tasks and lessons like this, I swear you're going to become the most successful student robot in all my 130 years of teaching."

"Hi there! I can't wait to see what comes next. Maybe we can postpone the theory for later?"

Java webinar

"My young friend, I've always said: don't postpone until dinner what you can eat for lunch. In other words, don't postpone until tomorrow what you can learn today! I found an excellent article just for you about the difference between abstract classes and interfaces."

"But Doctor Bilaabo explained that to me in five minutes!"

"With detailed examples?"

"Absolutely."

"Read this lesson: Difference between abstract classes and interfaces. You'll also learn something new about the InputStream and OutputStream interfaces. After that, you'll definitely be able to say you have no more questions :)"

Comments (6)
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Aldo Luna Bueno Level 1, Peru
2 March 2022
This is the first time I feel like I understand everything I read in the Oracle documentation. When I read "Throws: IOException" in a method, I can visualize what I have to do to use that method: catch the IOException in a try-catch block, or throw it up a higher method all the way to main. Theory is all very well, but now I see how powerful practice is as far as knowing what can you do.
TheLordJackMC Level 39, Princeton, idk somewhere
15 July 2021
"But Doctor Bilaabo explained that to me in five minutes!" time travel?
LennyMan Level 25, Lucca, Italy
27 December 2020
Why there isn't some helpfull link about InputStream and Output stream? I think its an important topic, and i didnt find something clear online
Koniasz Level 22, Warszawa, Polska
16 August 2019
Is it the article from a few lessons ago?
Seb Level 41, Crefeld, Germany
3 February 2020
That's right - a good repetition here. :-)
Ewerton Level 30, Belo Horizonte, Brasil
30 June 2019
Although I know it's necessary, I really don't like theory...