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Adapter Design Pattern

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Welcome to my Adapter Design Pattern Tutorial! This is a very easy design pattern to grasp and put into use.

This pattern is used when you want to translate one interface of a class into another interface. Now, it makes sense that these 2 interfaces are compatible otherwise the pattern may not make sense. To accomplish this, all you need to do is bridge the differences using our old friend composition again.

Watch the video and look at the code and you’ll get it.

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35 responses to “Adapter Design Pattern”

  1. Edward Ryklin Avatar
    Edward Ryklin

    Hi Derek,

    To fully appreciate the advantages of this design pattern, I believe, it is best to declare the rx7Tank as an EnemyAttacker rather than EnemyTank. This way, the base pointer is the same for the robot and the tank.

    Reply
  2. Alan Meile Avatar
    Alan Meile

    at last someone capable of explaining this pattern to me.. the robot story did the trick. Ty

    Reply
  3. Besiktas7Bjk7 Avatar
    Besiktas7Bjk7

    This "Like or Hate?" note, which appears in the bottom at some time is just perfect for youtube videos. You make sure to show us a way we can support you if we liked it, but don't waste precious explenation time for that. When ever someone says in the middle of the video "If u liked this video…" I instantly hate this guy. Well done on that one. I always like when i see it.

    Reply
  4. Mariama Bundu Kamara Avatar
    Mariama Bundu Kamara

    Hello, this video is very good and understandable but i still have a problem. I need to program a Java project for Uni to show what the usage of the Adapter Patter is and explain in a presentation what the difference is to the Bridge Pattern. The problem is i still dont get the difference between them two. Can you please explain it to me.

    Reply
  5. Brandon Fabia Avatar
    Brandon Fabia

    bridges patterns

    Reply
  6. mitaanshu agarwal Avatar
    mitaanshu agarwal

    Software engineering is incomplete if you haven't spent hours on this channel.

    Reply
  7. G.I. qhrrkfl Avatar
    G.I. qhrrkfl

    feels bad about paul mate.

    Reply
  8. PinkPonyOfPrey Avatar
    PinkPonyOfPrey

    Aaaawwww! I still have my old rx7 on my desk over theeeeere!i
    It's a Yamaha RX7 drum machine from the eighties … built like a tank actually haha! 😀

    And yeah! I've been doing PHP with OOP (kind of) for a while now and with a big pile of code I need to untangle this is the first pattern I check and the explanation is great but not what I need. I've seen this video series before more or less just dry watching it but now I need it and it makes more sense. I've 25 videos to rewatch … * deep breath * … cover me, I'm going in! 😀

    Reply
  9. moon sun Avatar
    moon sun

    you can use github to save the source code thanks

    Reply
  10. moon sun Avatar
    moon sun

    thanks

    Reply
  11. moon sun Avatar
    moon sun

    can you make sustitle for your videos

    Reply
  12. Suman G Avatar
    Suman G

    5 years old video and you r still one of the best when it comes to Java tutors on YouTube !!

    Reply
  13. Chasen Bettinger Avatar
    Chasen Bettinger

    What is the purpose of having the adapter? Is it because you could ultimately make different adapters for different platforms (i.e. tank, robot, jet)? Why wouldn't you just create classes for each different object and manipulate their components through getter and setter methods?

    Reply
  14. Paula Resende Avatar
    Paula Resende

    Saved my life <3

    Reply
  15. Janahan Coroiz Avatar
    Janahan Coroiz

    Excellent video.

    Reply
  16. Kris Avatar
    Kris

    Thanks!

    Reply
  17. skank hunt 42 Avatar
    skank hunt 42

    In class we saw this pattern differently. No composition was used but instead the adapter inherits from the adaptee. :S

    Reply
  18. Mohammed Sultan Avatar
    Mohammed Sultan

    Excellent…
    but sometimes you need to slowdown 🙂
    Thank you

    Reply
  19. krishan kant gangwar Avatar
    krishan kant gangwar

    hey Derek…Can you please share UML diagram of adapter design pattern for the given example….

    Reply
  20. Chris Graham Avatar
    Chris Graham

    Derek – You've made this and the other patterns accessible by mortals. Thanks ever so much!

    Reply
  21. Avalin, Queen of Flaming Arachnids Avatar
    Avalin, Queen of Flaming Arachnids

    Marry me

    Reply
  22. Sameer Sawla Avatar
    Sameer Sawla

    Cool

    Reply
  23. Kris Nguyen Avatar
    Kris Nguyen

    tks u so muchhhhhhhhhh !!!!

    Reply
  24. scarlaticious Avatar
    scarlaticious

    Great video! I feel like I finally get it

    Reply
  25. popopo Avatar
    popopo

    You saved my life with your videos. I am totally going to pass my data structures exam tomorrow! And it's all thanks to your videos about patterns!!! THANKS!!!

    Reply
  26. Cristobal Gallegos Avatar
    Cristobal Gallegos

    Almost every time I need a tutorial on CS related topics, I find one of your videos. I am immediately relived since you are a master, and provide the information in a pristine manner. Thank you for all your time and help!

    Reply
  27. billyblackburn87 Avatar
    billyblackburn87

    why bother with an interface in the first place

    Reply
  28. Abhishek Bachchan Avatar
    Abhishek Bachchan

    In the TestEnemyAttackers class, shouldn't the reference be EnemyAttacker for the EnemyTank object for it to make sense? I mean shouldn't it be:
    EnemyAttacker rx7Tank = new EnemyTank(); ???

    Reply
  29. Mohammad Saif Avatar
    Mohammad Saif

    Good job and great work done by you with no words from me .

    Reply
  30. Jean Mary Borgella Avatar
    Jean Mary Borgella

    Sir Derek, A cup of coffee isn't enough to thank you before your videos i was mediocre and now my teacher is telling how good i'm and i know it's your video's effect. I' m ending my bacc and everything become so easy for me. Thanks a lot.

    Reply
  31. Abdul Wahab Avatar
    Abdul Wahab

    Can I have the slides ?

    Reply
  32. Carlos Vizcaino Avatar
    Carlos Vizcaino

    Hey, Derek.

    How is the Adapter different from Proxy Design Pattern. Thanks.

    Reply
  33. Mayur Kulkarni Avatar
    Mayur Kulkarni

    Thanks for the superb video 🙂

    Reply
  34. Muhammad Adnan Akmal Avatar
    Muhammad Adnan Akmal

    Derek Banas Thanks sir awesome explanation i don't have words to express my gratitude you are The Father of Design Pattern
    (y) (y) (y)(y)(y)(y)(y)(y)(y)(y)(y)(y)(y)(y)(y)(y)(y)(y)(y)(y)(y)

    Reply
  35. Bill Newport Avatar
    Bill Newport

    Hello

    Reply

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