Abstract Class In Java Tutorial #79

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Learn how to make an abstract class in java and learn the difference between abstract classes and interfaces!
Learn java in just 14 minutes: • Learn Java in 14 Minut...
An abstract class in java is a list of variables and methods that help you make other classes. Abstract methods don't have code in them.
The Java abstract class and abstract method can be tricky at first... But SURELY you'll get it :) If you followed along, congrats! You learned abstraction by-doing!
I hope you enjoyed this abstract class in java tutorial! I like to have a nice mix of java tutorials and actual projects for you all :)
Was this able to help you learn how to use abstract classes and abstract methods in java? -
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Alex Lee

[@alexlorenlee]

If you’re new to programming but want a career in tech, I HIGHLY RECOMMEND applying to one of Springboard’s online coding bootcamps (use code ALEXLEE for $1,000 off): bit.ly/3HX970h

[@DiabeticDebuff]

dude you managed to do in 9 minutes what my professor couldn't do for a whole class: teach us about Abstract classes/methods. Thank you!!

[@bindus4943]

kzbin.info/www/bejne/b2mkcpWlrZuel5o

[@julian.castro18]

and poop.

[@mansioncapital3358]

@@bindus4943 ahahha

[@johecht7872]

Same, he just simplified everything my teacher said

[@tjake7864]

I agree!

[@danielmagdziarz7440]

Favorite line: "public void poop"

[@vpenywise]

I couldn't get though how can a 'poop' be a 'void', when it most definitely 'returns' something :) I mean, you definitely see the result, right there! :)

[@thedude4795]

I invested in stocks and my *final* *return* was *void.* *Silence. *

[@adenosinetp10]

@@thedude4795 lol

[@smellthel]

@@vpenywise mind blown

[@JohnDoe-cu6jv]

"avoid" poop

[@vpenywise]

That's like 200 pages summarised in 9 minutes, thank you!

[@agrajyadav2951]

TWO HUNDRED!!??

[@vladthecoldone8804]

More like 20. His reasoning is not what it actually is, basically he says how he feels about it. Doesnt even explain when you should use A instead of B, that you can use extends and implements simultaneously and why is it useful etc. Like I said "more like 20" but I understand that hes dumbing it down so regulars can understand and that Im procrastinating and probably should be studying for exams lmao

[@josephkreifelsii6596]

@@vladthecoldone8804 More like 5. I've never seen a single Programming textbook take more than 5 pages to explain 1 thing

[@lachlanstavrevski5255]

You should literally be teaching programing courses for universities. You explain everything so well!

[@mmq6525]

he wouldnt be able to teach a 10+ week course, he'd have you ready for finals in 3 weeks

[@Chimeratech_O.D.]

Turned a massive chunk of my textbook into a bitesize lesson. Thanks a million, Alex.

[@SamiUllah-sh9rb]

I requested this video yesterday? You are so Quick and made this video. Love From Pakistan 🇵🇰 🇵🇰 🇵🇰....

[@kannankichu1997]

How and where to request him?

[@SamiUllah-sh9rb]

@@kannankichu1997 survey and questions asked by alex in a post on KZbin.

[@LT-pp2vr]

Truly thankful from an initial programmer from Taiwan

[@anshuman4873]

Do people in Pakistan study too ?.. Amazed man...

[@nyko1689]

@@anshuman4873 LOL, what makes you think they don't study? just curious.

[@ccacc_]

love how every start of the video, you would be encouraging beginners like us that are in confusion state, that we will eventually understand it.

[@Lydeliini]

That's what got me hooked :P And he was right!

[@serdarekid]

YESSS!!! Just what I needed and when. Thank you man, you're the best!

[@bindus4943]

kzbin.info/www/bejne/b2mkcpWlrZuel5o

[@XAyaDubX]

You're an absolutely amazing teacher. Thank you so much for making everything so simple. You communicate very efficiently.

[@atousamas7232]

After a year of struggling to understand abstracts and interfaces,I just learned them right now in just 8 minutes. It was really really helpful,you explained it so simply and so good,thanks

[@xenonnanon]

I have a Free Response quiz tomorrow, and you just helped me secure my A. Thank you very much, Alex! You have my sub!

[@annahuggins6636]

I'm a student in college atm, we just got a major assignment over polymorphism and abstraction, and naturally, we barely covered this. I am super thankful for this video, it has been super helpful in explaining the differences between abstract classes and regular ones and I would not be able to understand abstraction so well without this video!

[@itchyass981]

Clear, consise and good use of examples. This helped me a lot, thank you!

[@Sk8zOfficialMusic]

You were able to explain something I'm learning in a coding bootcamp for over 2 days in 8 minutes. Thanx so much man.

[@karsten7601]

I have been a full stack developer for a year. I love watching these interviews as I prep for interviews in the future. Love it

[@Govindyatnalkar]

The exact explanation I needed between an interface and an abstract class, plus implements and extends. Thanks.

[@juiceboxxe5959]

I'm brushing up in prep for interviews and you are so clear and helpful. Thank you.

[@techandgaming17]

This is the simplest yet best explanation on abstract classes and methods i have ever encountered. Kudos Alex.

[@amirkamalian4848]

i have BEEN searching for this topic for a long time, i'm 100% sure this is the best video in the internet to understand abstract and interface, Thank you ALOT !

[@TheAngel28645]

This video was perfect !! you were clear and affective, my professor took 4 hours to explain this , but you summarize everything in 8min !!! thank you Alex you are the best !!

[@jespinoza011]

This man is a fantastic programmer and instructor. He helps by breaking down complex terms and concepts, making them so easy to understand. Definitely worth subscribing, I look forward to more of your videos!

[@seajay9711]

in less than 15 minutes this person just taught me abstract classes nad methods and polymorphism, something my college professor couldn't do in a month's worth of lectures. Major thanks from a panicking student in finals season!!

[@user-ms3hz3ml6g]

You always know *JUST* what I need! Did you create a program of mind reading?

[@praneethchakri7052]

Dude, Thank you so much for explaining us in the most layman way as possible. Have always been intimidated to understand or get the right picture of these terms since "years". You just made my java fears fly away by explaining these basics in 10 mins each. Thanks again.!!

[@SuperMrHolmes]

This was extremely helpful. You are very talented at teaching and keeping it concise. Thank you!

[@nonbeehead]

I'm in data structures this semester, and these videos are a great help! Thanks, Alex!

[@yaminchoudhury8732]

Broskiii this was the best 9 minutes of my life, I love you thank you so much. LIFE SAVER

[@Cheyenne9663]

If have watched some of your previous videos and they were explained too fast for my small brain. This video was laid out nicely. Went slow enough for the the idea to sink in, you kept it simple and clear. Thank you!!

[@adamameen5]

You are amazing. Such clear explanation. Learnt within 9 minutes that could not be learnt for 9 years.

[@metin1504]

even though this is 3 years after the video, i wanted to say how much i can appreciate your down to earth way of explaining these things. something about it being more like a conversation helps getting the point across way better. keep it up! edit: ahh just saw the "end of java tuts" video. hope the new path is the right one for you! btw nice miata ;)

[@supriyajain7904]

Very few can explain these very basic core concept of Oops with such clarity. Your basics are so so clear. Thanks

[@TheEchomaker]

thank you so much for clarifying the differences between abstract classes and interfaces!

[@gert2628]

Hey man, just letting you know I appreciate you. Online classes are leaving me so confused on these new Java concepts and these videos really help me get a grip on them.

[@musguz]

You are clearifying everything in an easy way. That's the difference and appreciation for all of us.

[@johnkeen7433]

Fun, creative, right, helpful, imaginative and incredibly useful to say the least. I like that there is not one word that I had to struggle to understand. Very articulate, thank you for making this video.

[@EmmaDyme]

Your videos are saving my life right now !! THANKYOU

[@ubryce1]

Your videos have saved me so many hours and helped me reach a deeper understanding on the concepts. Instead of doing things because they works i do it because I now know why its needed. Thank you

[@Loqalz]

you are carrying me through my whole java learning process, you're videos are so helpful keep it up :D

[@noei.quezadatorres3920]

Dude you're a gooood, i came here looking for the definition of abstract, and ended having the knowledge of implements, interface and the abstract itself, gooood bro

[@marziamumu6800]

Thank you!! I was confused and this video helped me a LOT. I have watched all your tutorials and learned more new things. Love from Bangladesh.

[@ianssight2785]

Hi Alex, I just want to comment on the great job you are doing. The video's are fun, informative and frequent enough to make real progress. Thank you, Thank you, Thank you.

[@hannahlocalio7011]

you're great! You're not robotic, you can relate to me and you understand the struggles and that's why you're my favorite java channel! :)

[@davileett1224]

This is by far the best clarification resource I have found between abstract classes and interfaces.

[@thespicyspicey]

Well, you're the best tutor I've seen. Short, Simple, to the point. I always recommend you to my friends ;)

[@kharlopena7512]

Thanks for this! My professor is great, but even she made this sound way more complex than it is. Your video was super helpful!

[@monicaperez5101]

I perfectly know how to explain the difference between interface and abstract class! Thank you!

[@aktchungrabanio6467]

This is the BEST tutorial for understanding Abstract Classes in JAVA I have ever seen! Thank you! You made it so clear :)

[@greatjobbuddy]

I learned more in this class on Abstract than my JAVA class at a California University. Alex was very clear about how it works. Saved me!

[@Dilly9124]

been trying to grasp this in my online course for days this video was crystal clear

[@michaelpiring6149]

Wow, thank you so much for this. I just had a course about abstaction in java and couldn't understand it. You explained it very clear and understandable. Well done alex!

[@juanacevedo5091]

I'm impressed how you simplify all this OOP topics, simply amazing

[@DANNFIGDESIGNS]

Brother. I love that you're pursuing your dreams and I know you'll do well. I will miss your Java vids. They have saved me. I don't have a good teacher for my college course. 😳Maybe you'll pop up every now and then and throw us Java people some love/bones. Regardless, thank you for being an encouragement and a big help. May you have continued success. 🤠

[@kunpeng8646]

I am a new learner on programming and I am getting stuck on the abstract class concept, this video helped me a lot, I totally understood right now. The example of a dog, poop, made the complicated concept much easier to be got by new learners like me. Thanks, this is a pretty nice tutorial!

[@harshshastri6099]

Hey Alex, you're doing a great job. It would be cool if you could cover how static methods are used in interfaces and abstract classes, and how variables cannot have abstract keyword in them.

[@oscarvergara6795]

I love your videos buddy. For a while I was not aware what these terms were and I didn't even bother looking them up when I should have, but you explain these things so simply. Thank you!

[@StealthyLifter]

this is my 4th time learning java and i was struggling to learn by myself, i mean practising, soo Thanks to u .. u make it clear and soo simple that it reaches my garbage brain. love u man ..plz keep what u r doing cuz we all love to learn from u

[@Alireza13488]

Alex's tutorials are simply one of the easiest and most understandable videos I have seen on KZbin.

[@andrewfulo3249]

Awesome job explaining all these Java concepts! Hands down the best quick and easy Java tuts online. Kudos. Thanks for helping the rest of the world with these videos

[@omarshaikh6622]

You're the only person that made abstraction not sound complicated. Here's a thumbs up and a subscriber. thank youuuuu!!!!!!!

[@user-nh1qt2cj4x]

Absolutely fantastic! It's hard to learn from the university lectures, but this was entertaining and insightful. A perfect combination! Thank you.

[@nigelburke7391]

6:10 lol, literally answered my question as it popped into my head

[@SHUBHAMKUMAR-cd7fs]

I just love the way you smile man along with teaching these tutorials. This kinda gives me motivation that this this is an easy topic and i can do it. Thanks.

[@ramz161]

I understood more in the first 8 minutes of this video, than in 2 hrs of my professors lecture. Thank you Alex, Great work!

[@ovonickalicious]

I have an exam coming up and watching your videos makes everything so simple to understand. THANK YOU SOOO MUCH !!!!!!!!

[@leilawang3554]

Hi Alex, just want to say thank you so much for these little bite size videos that have helped me a lot during my Java learning journey! Kudos to you!

[@drew1936]

When you choose the first result off the search screen and it is a really good video and actually teaches you something. Nice job, man. I loved the video!

[@imanelmzk2064]

so helpful, thank you for your time, that verlly help us to understand the differents between interface and abstract class, thank you!!

[@prasadjeyapalan8918]

You managed to explain this in 9 minutes what my professor was trying to ramble forever.

[@Anastasia231]

amazing! i watch your videos on the topic first, and then my class video. its been working out so well... honestly thank you so much you've been a lifesaver in explaining stupidly boring concepts so well

[@ainazikmomunalieva3732]

Thank you so much, Alex! Your tutorials are really clear and helpful.

[@Larichanns]

YOU SAVED MY LIFE. Have an exam in an hour. Thank you sm!!

[@stefan8193]

Bro you are genius. You explain it in 10 minutes with simple words. Very understandable!!! You are the king.

[@MKSundaram]

Wow! that was simply great. You have a knack to put things in simple and clear terms.

[@user-ny8ow3uj2b]

this was so helpful and i'm so glad you went over the difference between an abstract class and an interface because i was sure about to leave a comment asking!

[@joshuabrown3861]

Great video, definitely helped me understand both abstract methods and interfaces, which I felt left in the dust during class :)

[@AlvomaniaDK]

Lovely and comprehensive tutorial. thanks for taking the time

[@ghostropes]

Making and implementation of a GUI currently what I'm struggling with right now also do you use the java library site religiously or not that often?

[@radioactive5882]

This Tutorial was so easy to follow. Thank you. My textbook was obviously over complicating things.

[@Seansadventure]

im so glad this guy exist i am basically watching his videos for everything i learn now, because he teaches it better

[@harshasuresh4062]

The clarification between abstract and interface was really good! While I was watching the video I had this doubt and like a second later you brought it up 😂 YOU ARE AMAZING ALEX!!!♥

[@deli5777]

Thanks for actually stating the difference! So many people will give characteristics without really defining what they're talking about.

[@MadzicPlays]

Your videos are always top tier quality. Simple yet so informational. I don't understand why you haven't got more subscribers. Cheers!

[@ronaldotiego]

I have been looking for this. Deep yet simple

[@mp7596]

I love the way you explain things! Thank you!

[@rebornmanga]

Excellent description, thank you!

[@dv4346]

You just gained a new subscriber! Wow, your explanations are crystal clear thank you so much!

[@joshgomez8239]

Thank you! you literally explained that so well. Good for beginners!

[@WinOfficially]

I am developer from 2 years and have been unable to understand abstraction. But now thanks to you I finally can. Love you man 👊😀

[@andreaherrera4854]

I have been trying to learn java and everything seemed so hard, but you made it so easy and funny with the methods names. Thank you!!

[@wes2187]

When trying to learn these concepts in school I think the biggest word that through me off was implemented. All the textbooks use it but I didn't understand what it meant. Thankfully you described it very well here and I feel much better. Thanks!

[@luigiiih5737]

Great vid! During the video is was wondering what the difference was with an interface... and on that moment you started explaining it. Thank you!

[@Saiintx]

What an amazing explanation, so glad u compared it to interfaces and explained why its necessary at all! Thanks very much :))

[@emrezkc]

so in an abstract class we can have methods that are not abstract but in an interface we cant. makes perfect intuitive sense :)

[@jasonwinata2675]

Simple but covers the topic thoroughly. Well done man!

[@dizie9812]

Really helped me a lot to know the difference between abstract and interfaces! Thanks!

[@luciarigoni8289]

Thank you so much for this video! It was very helpful!

[@anastasiagavrilita6567]

At the beginning of this video, when you said "this may be a bit confusing to you", I swear that words I never knew I had in my vocabulary came to my mind to help me curse, because hell ya, I was confused! At the end, when you clarified the difference between the interface and the abstract class and said "hu, that was a lot!", my brain was already doing the happy dance. Thank you so much!!!

[@satyajeetpaygude8932]

such small videos are quick help .. thanks a ton !!!

[@adrianlocquiao4865]

Hi Alex. I'm starting my journey into software development. This video is very informative and helpful. Thank you for doing what you do!