Abstract Class In Java Tutorial #79

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  • เผยแพร่เมื่อ 18 พ.ย. 2024

ความคิดเห็น • 904

  • @alexlorenlee
    @alexlorenlee  ปีที่แล้ว +9

    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
    @DiabeticDebuff 4 ปีที่แล้ว +1270

    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
      @bindus4943 4 ปีที่แล้ว

      th-cam.com/video/98AAbox6ka8/w-d-xo.html

    • @julian.castro18
      @julian.castro18 4 ปีที่แล้ว +21

      and poop.

    • @mansioncapital3358
      @mansioncapital3358 4 ปีที่แล้ว +1

      @@bindus4943 ahahha

    • @johecht7872
      @johecht7872 4 ปีที่แล้ว +4

      Same, he just simplified everything my teacher said

    • @tjake7864
      @tjake7864 4 ปีที่แล้ว

      I agree!

  • @vpenywise
    @vpenywise 4 ปีที่แล้ว +213

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

    • @agrajyadav2951
      @agrajyadav2951 2 ปีที่แล้ว +2

      TWO HUNDRED!!??

    • @vladthecoldone8804
      @vladthecoldone8804 2 ปีที่แล้ว +1

      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
      @josephkreifelsii6596 2 ปีที่แล้ว

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

  • @lachlanstavrevski5255
    @lachlanstavrevski5255 4 ปีที่แล้ว +158

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

    • @mmq6525
      @mmq6525 2 ปีที่แล้ว +27

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

  • @SamiUllah-sh9rb
    @SamiUllah-sh9rb 5 ปีที่แล้ว +247

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

    • @kannankichu1997
      @kannankichu1997 4 ปีที่แล้ว +2

      How and where to request him?

    • @SamiUllah-sh9rb
      @SamiUllah-sh9rb 4 ปีที่แล้ว +1

      @@kannankichu1997 survey and questions asked by alex in a post on TH-cam.

    • @LT-pp2vr
      @LT-pp2vr 4 ปีที่แล้ว +5

      Truly thankful from an initial programmer from Taiwan

    • @anshuman4873
      @anshuman4873 4 ปีที่แล้ว +9

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

    • @nyko1689
      @nyko1689 4 ปีที่แล้ว +15

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

  • @ccacc_
    @ccacc_ 4 ปีที่แล้ว +61

    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
      @Lydeliini 3 ปีที่แล้ว +3

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

  • @Chimeratech_O.D.
    @Chimeratech_O.D. ปีที่แล้ว +13

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

  • @atousamas7232
    @atousamas7232 4 ปีที่แล้ว +27

    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

  • @serdarekid
    @serdarekid 5 ปีที่แล้ว +86

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

    • @bindus4943
      @bindus4943 4 ปีที่แล้ว

      th-cam.com/video/98AAbox6ka8/w-d-xo.html

  • @seajay9711
    @seajay9711 3 ปีที่แล้ว +3

    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!!

  • @annahuggins6636
    @annahuggins6636 3 ปีที่แล้ว +4

    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!

  • @עדןמזור
    @עדןמזור 5 ปีที่แล้ว +46

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

  • @joeyjaehyeokkim5064
    @joeyjaehyeokkim5064 ปีที่แล้ว +1

    4 yers later, still helping students. You prob don't even realize how helpful these videos are fr

  • @XAyaDubX
    @XAyaDubX 4 ปีที่แล้ว +12

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

  • @WinOfficially
    @WinOfficially 2 ปีที่แล้ว +1

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

  • @abdulpangandaman
    @abdulpangandaman 5 ปีที่แล้ว +26

    After or during each of your video can you give us an assignment? Or some sort of activity that we need to answer/code.
    In that way, we will know the essence of your tutorial.

  • @Sk8zOfficialMusic
    @Sk8zOfficialMusic ปีที่แล้ว +2

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

  • @Bryan_Salvador
    @Bryan_Salvador 4 ปีที่แล้ว +10

    Pretty much everything I need to know condensed in

  • @uoriwoh
    @uoriwoh 3 ปีที่แล้ว

    Lecturers here spend hours explaining this simple concept and failing. 6 minutes of this 8 minute video clarified it. Thank you so much.

  • @kharlopena7512
    @kharlopena7512 2 ปีที่แล้ว +3

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

  • @prasadjeyapalan8918
    @prasadjeyapalan8918 2 ปีที่แล้ว +2

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

  • @danielmagdziarz7440
    @danielmagdziarz7440 4 ปีที่แล้ว +447

    Favorite line: "public void poop"

    • @vpenywise
      @vpenywise 4 ปีที่แล้ว +33

      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
      @thedude4795 4 ปีที่แล้ว +15

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

    • @adenosinetp10
      @adenosinetp10 4 ปีที่แล้ว

      @@thedude4795 lol

    • @smellthel
      @smellthel 4 ปีที่แล้ว +2

      @@vpenywise mind blown

    • @JohnDoe-cu6jv
      @JohnDoe-cu6jv 3 ปีที่แล้ว +1

      "avoid" poop

  • @kunpeng8646
    @kunpeng8646 4 ปีที่แล้ว +1

    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!

  • @goldengunist
    @goldengunist 5 ปีที่แล้ว +41

    ALEX!! Thank You for making all these Java videos!! Seriously think that you deserve at least 100K subs for the simple and clear explanations! PLUS it helps that your super handsome and cute

  • @davidstrom1434
    @davidstrom1434 2 ปีที่แล้ว +1

    You should teach in university. These are the best Java Videos i have seen! Thank you for saving my butt!!

  • @SuperMrHolmes
    @SuperMrHolmes 4 ปีที่แล้ว +4

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

  • @DANNYFIGDESIGNS
    @DANNYFIGDESIGNS 3 ปีที่แล้ว +2

    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. 🤠

  • @nigelburke7391
    @nigelburke7391 4 ปีที่แล้ว +17

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

  • @Two_Wheel_Yeehaw
    @Two_Wheel_Yeehaw ปีที่แล้ว

    Dude I sat through a 2 hour lecture on abstract methods and had no idea what my professor was talking about.... amazing what an 8 min video of quality explaining can do.

  • @Shaf23
    @Shaf23 5 ปีที่แล้ว +7

    Can you do a video where you explain all of your shortcuts? It would really help me save more time

  • @stefan8193
    @stefan8193 3 ปีที่แล้ว

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

  • @xenonnanon
    @xenonnanon 5 ปีที่แล้ว +4

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

  • @amirkamalian4848
    @amirkamalian4848 2 ปีที่แล้ว +1

    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 !

  • @yaminchoudhury8732
    @yaminchoudhury8732 4 ปีที่แล้ว +3

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

  • @minh-tamvo4608
    @minh-tamvo4608 ปีที่แล้ว

    Everytime something feels off or not all understood after class, I come to your videos and it sums up a 3h in 10 minutes.

  • @harshshastri6099
    @harshshastri6099 3 ปีที่แล้ว +4

    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.

  • @ericlin8331
    @ericlin8331 4 ปีที่แล้ว +1

    My professor spent an hour and 30 minutes trying to explain abstract classes and still manage to fail to get us to understand it. This is wayyy more clearer.

  • @Mangadrawings123
    @Mangadrawings123 4 ปีที่แล้ว +24

    You may or may not have just saved me from failing my exam

    • @khanf13
      @khanf13 3 ปีที่แล้ว +5

      howd u do

    • @Salio_Mendes
      @Salio_Mendes 3 ปีที่แล้ว +1

      I hope u did well, I got my exams this week...help!

  • @rashmibalasooriya8447
    @rashmibalasooriya8447 หลายเดือนก่อน

    Dude you are the only person who could be able to make me understand... the whole class looked at me like an idiot after telling nonsenses about abstract, so called "teaching"!! Super thankful ❤

  • @aishwaryamurugappan5138
    @aishwaryamurugappan5138 5 ปีที่แล้ว +3

    Alex,Thanks a lot,for this clear and simple explanation with cute examples, this is very helpful,and i'd also wish if you could make videos like, kinda creating simple games with java or a demo on some project with java,on application basis of these concepts.. :)

  • @noei.quezadatorres3920
    @noei.quezadatorres3920 2 ปีที่แล้ว +1

    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

  • @ghostropes
    @ghostropes 5 ปีที่แล้ว +9

    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?

  • @praneethchakri7052
    @praneethchakri7052 2 ปีที่แล้ว +1

    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.!!

  • @kaushiksenthilkumar682
    @kaushiksenthilkumar682 4 ปีที่แล้ว +42

    "Every dog poop a little differently ", I laughed for almost 3 minutes lol

  • @adamameen5
    @adamameen5 2 ปีที่แล้ว +1

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

  • @myanch200
    @myanch200 5 ปีที่แล้ว +5

    Could you do some interesting projects with java

  • @Cheyenne9663
    @Cheyenne9663 2 ปีที่แล้ว

    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!!

  • @kalaiselvan539
    @kalaiselvan539 5 ปีที่แล้ว +12

    Is this the only difference between abstract and interface .. or something yet to add

    • @jameslowell9656
      @jameslowell9656 4 ปีที่แล้ว +11

      You can implement multiple interfaces but you can only extend one class regardless of whether it is abstract or not.

  • @supriyajain7904
    @supriyajain7904 ปีที่แล้ว

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

  • @marciano2293
    @marciano2293 5 ปีที่แล้ว +5

    Can you make a tutorial about java GUI using javaFX ?

  • @futgaming17
    @futgaming17 3 ปีที่แล้ว

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

  • @metin1504
    @metin1504 2 ปีที่แล้ว +1

    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 ;)

  • @InternetUser999
    @InternetUser999 3 ปีที่แล้ว

    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!

  • @TheEchomaker
    @TheEchomaker 2 ปีที่แล้ว +1

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

  • @banusha4898
    @banusha4898 3 ปีที่แล้ว

    Many hours of classes is just within 9 mins....you explained clearly just like a friend explaining everything 10 mins before exam.

  • @kamile1085
    @kamile1085 3 ปีที่แล้ว

    I think you deserve to get gold medal 🥇 if there is such a thing for Java instructors. I wish all the best for you!

  • @Alireza13488
    @Alireza13488 4 ปีที่แล้ว

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

  • @harshdeepsingh6768
    @harshdeepsingh6768 4 ปีที่แล้ว

    Nice work brother. Other people made stupid tables and listed the differences. You explained all in 9 minutes. Respect

  • @deli5777
    @deli5777 2 ปีที่แล้ว

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

  • @Nergeww
    @Nergeww 3 ปีที่แล้ว

    Holy crap I finally understand this a bit! The problem with most profs, is that they throw all the new terminology and expect us to use it to help us understand what we are learning. This makes so much sense now, thank you!

  • @omarshaikh6622
    @omarshaikh6622 4 ปีที่แล้ว

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

  • @ovonickalicious
    @ovonickalicious 5 ปีที่แล้ว

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

  • @gomesfamily2.0
    @gomesfamily2.0 3 ปีที่แล้ว

    I have watched so many videos from so many ppl and you are the only one I understand in all of your tutorials👌 ....Man from now on I'm not gonna listen to my professor and waste my time killing my brain from now on I can say I learned Java from Alex,god bless man!

  • @JalerSekarMaji
    @JalerSekarMaji 3 ปีที่แล้ว

    Guys, I will have technical interview for programmer job.
    its about 30 mins from now, need to refresh about OOP paradigm and found this.
    Thanks Mr. Alex!
    Wish me luck!

  • @monicaperez5101
    @monicaperez5101 4 ปีที่แล้ว +1

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

  • @Loqalz
    @Loqalz 2 ปีที่แล้ว +2

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

  • @emrezkc
    @emrezkc 2 ปีที่แล้ว +1

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

  • @greatjobbuddy
    @greatjobbuddy 3 ปีที่แล้ว

    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!

  • @SHUBHAMKUMAR-cd7fs
    @SHUBHAMKUMAR-cd7fs 2 ปีที่แล้ว

    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.

  • @rrsbunker
    @rrsbunker ปีที่แล้ว

    I swear to god I dont understand how abstract works, even after 1 whole semester of learning and trying to implement it. I avoid using it in my project because I'm afraid it will mess it up even more.
    But after watching this video, I feel like "bruh, it was that simple all this time...??"
    Thank you man. Wishing you luck on your life journey!

  • @georgei2480
    @georgei2480 ปีที่แล้ว

    Alex Lee taught me more than all my collage profs combined. A true programming hero

  • @anastasiagavrilita6567
    @anastasiagavrilita6567 4 ปีที่แล้ว

    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!!!

  • @musguz
    @musguz 4 ปีที่แล้ว

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

  • @Dilly9124
    @Dilly9124 3 ปีที่แล้ว

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

  • @roastxbeefx7744
    @roastxbeefx7744 4 ปีที่แล้ว

    I will go through multiple different videos explaining a topic and I will not comprehend it until I watch your videos. Keep. Doing. Videos.
    Cheers!

  • @DC-se3vr
    @DC-se3vr 4 ปีที่แล้ว

    An abstract class helps us organize what that object should do. The abstract method is an idea to organize that object. ....
    Thank you for explaining this. I just had an interview and I couldn’t put this into words properly.

  • @leilas6325
    @leilas6325 4 หลายเดือนก่อน

    im so thankful i found this video before my OOP exam, thanks king

  • @killianoshaughnessy1174
    @killianoshaughnessy1174 4 ปีที่แล้ว

    ngl, i had to repeatedly scrub through the video so I could fully understand your point and not just pretend that I know what you meant. Not saying you explained it poorly, it's just that I'm training my brain to the thought-process. I'm glad you posted these vids on here, you're a god-send! So far, your tut had the right pacing. Keep up the awesome work!

  • @JVenom_
    @JVenom_ 3 ปีที่แล้ว

    I’m doing abstract programming right now in a summer course we need to learn c++, python, JavaScript and Haskell in 5 weeks. And I come to ur videos cause it’s soo clear that it translates languages

  • @ramz161
    @ramz161 2 ปีที่แล้ว

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

  • @jethior
    @jethior 6 หลายเดือนก่อน

    OOH Alex Lee!!!!!!!!!!!!!!!!!!!!!!!!!!!!! I don't know why I understand only your tutorial with an open heart!! thanks, man for making my life easier. I appreciate you really.

  • @ananthr1583
    @ananthr1583 3 ปีที่แล้ว +1

    Lol dude you are a kid and I absolutely love it ..clicking this video is propbably the best decision i took today!

  • @hannahlocalio7011
    @hannahlocalio7011 2 ปีที่แล้ว

    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! :)

  • @jespinoza011
    @jespinoza011 4 ปีที่แล้ว

    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!

  • @davileett1224
    @davileett1224 4 ปีที่แล้ว

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

  • @user-ny8ow3uj2b
    @user-ny8ow3uj2b ปีที่แล้ว

    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!

  • @_airconditioner
    @_airconditioner 3 ปีที่แล้ว

    Thank you for existing! I've learned so much from your videos rather than my professors' lectures.

  • @Seánasadventure
    @Seánasadventure 4 ปีที่แล้ว

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

  • @oguzgonul2584
    @oguzgonul2584 2 ปีที่แล้ว

    35 page of powerpoint document is equal to your 9min video. Very clear, thank you

  • @ashec6606
    @ashec6606 2 ปีที่แล้ว +1

    thank you so much for making these videos! I was so lost in my java class, and your videos have helped everything make sense

    • @ariton2990
      @ariton2990 2 ปีที่แล้ว

      If you need help learning with Java I can help you. Just add me on Discord.

  • @MagicTheNoah
    @MagicTheNoah 4 ปีที่แล้ว

    You have helped me very much

  • @maylouh
    @maylouh 3 ปีที่แล้ว

    Thank you, sir, for saving me ! You explained this a lot better than my teacher did in 3 hours.

  • @Gofishinmore
    @Gofishinmore 3 ปีที่แล้ว

    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!

  • @ianssight2785
    @ianssight2785 5 ปีที่แล้ว +2

    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.

  • @radioactive5882
    @radioactive5882 3 ปีที่แล้ว

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

  • @testiafendiabdulwasi1058
    @testiafendiabdulwasi1058 2 ปีที่แล้ว

    after watching for 3 minutes i felt to like and subscribe and continue its wonderful how you explain

  • @jiggoqoila9241
    @jiggoqoila9241 2 ปีที่แล้ว

    The comeback I did in my final exams yoo thank you mate with your All Java classes 🆙

  • @aktchungrabanio6467
    @aktchungrabanio6467 ปีที่แล้ว

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

  • @karsten7601
    @karsten7601 4 ปีที่แล้ว

    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

  • @dinurajayatilleke
    @dinurajayatilleke 3 ปีที่แล้ว

    Bro, you are a Xavier