I just discovered this channel recently and I have to say that the way he explains Java concepts is excellent by far. BTW, nice game collection sir, specially guitar hero and God of War
@@CodingWithJohn stop bullshiting people into thinking that what you're teaching them is enough. Dude literally teaches a,b,c and gives an impression that hey you all now full stack devs
Nice way to flex your "game stack". You should try to visualize a binary serach tree in the same way as you did with the stack ;) Note: You should also talk a bit more about base cases and using multiple base cases for different recursive solutions.
Your videos again are so awesome; simplifying/distilling complex subjects down before building them up. That’s an amazing ability missing in the teaching /passing on knowledge today. Especially in Programming/Learning, today! 🙌🏿🙏🏾🙏🏾
Trust me, they way this guy uses analogy to explain programming concepts is highly appreciated. If he keeps it up, his tutorials will outshine many other tutorials in no time.
John, I subscribe to you with my coding channel. In this video I see that you live the life that I am looking for myself. Programming Expert, Musics enthusiast, videogames, and probably a traveler which is the last aspect I want to adopt. I am certified in Java as a 3 months ago. But I want to do the whole course again, with you. You simplify everything that I learned, and it feels like new. Amazing. Thanks.
Finally, I have found a tutorial about recursion that I understand. I was feeling really defeated because it just wasn't clicking. Thank-you for this explanation.
Hi John! I'm currently learning about recursion in one of my classes, and I seriously had a lightbulb moment a minute into this video. I hope this doesn't come off as if I'm dissing my instructor, but I feel like I got more out of this quick video than the hour long lecture video that my college professor made. You explain things in ways that are very easy to understand. Thanks to you, I was able to touch up my program so that it now works as intended! You've got yourself a new subscriber :D Thank you again!
it is my first comment ever, recently found your channel. Very appreciate your work, the way you explain it simple and efficient, thank you John! KEEP GOING!
I have been having a hard time juggling my music, programming, and video game hobbies altogether and I was beginning to think I had too many hobbies. Now that I see that someone else has the same interests as myself and is successful, I feel reassured that it's not what I'm doing, it's my structure of doing them, and I just need a better schedule.
definitely a great video here, my professor is having us do recursion but his only explanation of what it is was "functions on steroids" so this video helped a lot. thanks:)
Please please please make a video about Quick Sort in Java! I love how you explain in the most simple way for beginners! Thank you so much for being here! It would be great if you could make a whole series about Data structures and algorithms.
In case it's not obvious, the count variable will only be defined once per function call, so if you decriment it in one call, the parenting calls will not see those changes. In order to change that, you can use a wrapper of an int or a static variable.
I _loved_ recursive calls when I learned about them in college long ago. I wrote them every time I could. But after I wrote one, I stepped back and realized a loop was actually simpler and more straightforward. In my whole career, I've written exactly _one_ recursive function that I thought was optimal. It's a text matching function that accepts wildcards. (There wasn't anything useful in any available library on that small system.)
Yeah, in theory every loop can be turned into recursion and every use of recursion can be turned into a loop. The sayHi() example seems to show that tail-call recursion optimization isn't well supported in Java.
The recursive function was "optimal" because my attempts to write it using loops resulted in much more code, and it was clumsy by comparison, @@IndellableHatesHandles. That one recursive function was tight, straightforward and simple.
Another good analogy that comes to my mind when I watch this is that the same kind of thing happens when two mirrors face with each other. Infinite reflection that repeats itself.
You chose a good introductory example. It shows that Java does not recognize tail recursion (where the function simply returns after calling itself). There is no need to make a recursive call if the function is tail recursive. The function can simply loop back to the beginning. C compilers will convert tail recursive functions to loops but Java compilers won't. Since rewriting tail recursive functions to use loops instead is a simple matter, you should always do so when programming in Java.
I was really destructed by what he was stacking, I was reading the name of the ............. "you know" Keep doing your great job. Your videos are so helpful for beginners like me.
Thank you! You saved me so much time understanding this topic. Can you make a video breaking down the Towers of Hanoi? That would be another great example. Thanks again!!
Love your videos! Great format. Could you please do one on setting up projects in Eclipse or Intellij? I often get into an endless loop of not being able to set up the build specs. A corrupted project in Eclipse does not allow me to specify the source and library files. So, a general explanation of how projects work in IDEs would be helpful.
Recursion has always baffled me (I think) because no one put it into the context of the call stack! This (THANK-YOU!) solidified the issue for me. Supplemental: if you had another line after the call to the sayHi() method, for example add System.out.println("Bye!"); after line 12, would your result be the following? Hi! Hi! Hi! Bye! Bye! Bye!
Just tried it and that was the result, minus the last "Bye!" (Not sure why) !!!! Because it returns before the third Bye println is run via the if statement... iteration of: sayHi(3) "Hi!"(3) sayHi(2) "Hi!"(2) sayHi(1) "Hi!"(1) return "Bye!"(2) "Bye!"(3) Do I have that right? (Or am I just rubber ducking?) 😁
![[LIVE] : ONE ลุมพินี 83 วันนี้!! คู่เอก "พันฤทธิ์ vs ซุปเปอร์บอล วันของโอม MBK"](http://i.ytimg.com/vi/1b4pkKHa_Fk/mqdefault.jpg)
This has to be the nerdiest video game flex I have ever seen and I love it
I just discovered this channel recently and I have to say that the way he explains Java concepts is excellent by far. BTW, nice game collection sir, specially guitar hero and God of War
Learn Java by Kratos 🔪
Koding With Kratos
public static BOYD main
@@CodingWithJohn help! I am a little confused. That Call Stack thing. Is it the Stack as in Stack-Heap? Or is it a whole other Stack? oO
@@CodingWithJohn stop bullshiting people into thinking that what you're teaching them is enough.
Dude literally teaches a,b,c and gives an impression that hey you all now full stack devs
Nice way to flex your "game stack".
You should try to visualize a binary serach tree in the same way as you did with the stack ;)
Note: You should also talk a bit more about base cases and using multiple base cases for different recursive solutions.
I was thinking the same thing lol. Impressive game stack.
LMAO exactly wht I thought
came here to write this 😂
how about the music instument stack
Your videos again are so awesome; simplifying/distilling complex subjects down before building them up. That’s an amazing ability missing in the teaching /passing on knowledge today. Especially in Programming/Learning, today! 🙌🏿🙏🏾🙏🏾
This is the best way I've ever seen of explaining recursion to beginners. It can be a very confusing concept to grasp. You are an excellent teacher.
Explained so clearly! 11 minutes was better than 1 hour of lecture, I love your channel!
Glad I'm not the only one who feels this way, it's kinda sad how much money college costs and then it gets dunked on by a free YT video.
This video deserved a LIKE. I have been working in IT as a Java developer for more than 4 years and I learnt something new today. Kudos!
4 years and you don't know simple recursion
Been stuck on the idea for recursion for so long now and this guy helped me out so much! Instant sub my friend.
The way you explained a stack overflow error was incredibly helpful. Thank you for this content!!
Trust me, they way this guy uses analogy to explain programming concepts is highly appreciated. If he keeps it up, his tutorials will outshine many other tutorials in no time.
I started watching your videos for homework help, now I just love watching you explain things. Thanks for the explanation!
John, I subscribe to you with my coding channel. In this video I see that you live the life that I am looking for myself. Programming Expert, Musics enthusiast, videogames, and probably a traveler which is the last aspect I want to adopt. I am certified in Java as a 3 months ago. But I want to do the whole course again, with you. You simplify everything that I learned, and it feels like new. Amazing. Thanks.
I've been studying java for year now
and only now i understood what recursion actually means thanks to you
you're gonna be big someday thanks buddy!
I only discovered this channel recently, but it already improved my understanding of java a lot, thanks for your help man
You're the best Java teacher I've ever had and I've been through two colleges
you should study more then :/
@@abhaygoyal9499oh don't worry about me, I passed both colleges with 4.0. John is just a better teacher 🙂
Dude Whoever you are. You made recursion as pleasent as my morning oatmeal for me. Thank you Sire !
Smart straight forward explanations with no hiccups.
Every vid I've watched here on the channel filled the huge gaps of knowledge I had.
me and my friends have bough =t courses from various sites but he is the best java teacher out there,really!! just the best
Finally, I have found a tutorial about recursion that I understand. I was feeling really defeated because it just wasn't clicking. Thank-you for this explanation.
I can see you getting pretty big on TH-cam in the software dev space. Keep it up!
Great, you have done very well. I really want to say thank you for being the best teacher in teaching recursion.
this video brought my soul back into my body thank you so much
Hi John! I'm currently learning about recursion in one of my classes, and I seriously had a lightbulb moment a minute into this video. I hope this doesn't come off as if I'm dissing my instructor, but I feel like I got more out of this quick video than the hour long lecture video that my college professor made. You explain things in ways that are very easy to understand. Thanks to you, I was able to touch up my program so that it now works as intended! You've got yourself a new subscriber :D
Thank you again!
I love that my man is using absolute banger Gamecube games to explain the call stack. 10/10 helpful
Man, I have struggled to understand this and you made it so easy. God bless you.
it is my first comment ever, recently found your channel.
Very appreciate your work, the way you explain it simple and efficient, thank you John!
KEEP GOING!
I go to ASU and the class I'm in is unlearnable, found this channel and its saving my butt.
I have been having a hard time juggling my music, programming, and video game hobbies altogether and I was beginning to think I had too many hobbies. Now that I see that someone else has the same interests as myself and is successful, I feel reassured that it's not what I'm doing, it's my structure of doing them, and I just need a better schedule.
youre a king for explaining this so smoothly. thanks!
thank you for explaining callstack, i finally understand why a recursive method can return multiple times
Good one. Your IDE is visible clearly. Not many are able to do this. I came across your channel few days ago only and liking it.
definitely a great video here, my professor is having us do recursion but his only explanation of what it is was "functions on steroids" so this video helped a lot. thanks:)
This channel is great and helping me with school.. didn’t know that stack overflow could happen without infinite recursion!
The way you explain it makes it so easy for a beginner to understand! I hope you keep making more videos ^^
Your videos are so awesome. simple & clear. Not a thing in your videos are unnecessary. ✌🏻
I recently used recursion to delete files in folders with pure jdk, and thanks for reminding me of the stack depth limit thing
Please please please make a video about Quick Sort in Java! I love how you explain in the most simple way for beginners! Thank you so much for being here! It would be great if you could make a whole series about Data structures and algorithms.
Still working on it! It's a tough algorithm to explain simply.
In case it's not obvious, the count variable will only be defined once per function call, so if you decriment it in one call, the parenting calls will not see those changes. In order to change that, you can use a wrapper of an int or a static variable.
Thank you Sir. I love your lessons. They are very well broken down into small steps with each step explained thoroughly. Beautiful!
That's why teacher should be legend, but no body teach like Durga sir, he has another level teaching skills...mind blowing
Who is durga
@@adipurnomo5683 he's a youtuber....indian guy to be specific
This was amazing, I had a hard time with Recursions but this just made everything click!
I _loved_ recursive calls when I learned about them in college long ago. I wrote them every time I could. But after I wrote one, I stepped back and realized a loop was actually simpler and more straightforward. In my whole career, I've written exactly _one_ recursive function that I thought was optimal. It's a text matching function that accepts wildcards. (There wasn't anything useful in any available library on that small system.)
Yeah, in theory every loop can be turned into recursion and every use of recursion can be turned into a loop.
The sayHi() example seems to show that tail-call recursion optimization isn't well supported in Java.
Recursion is a kind of pervertry 😄
*shrug* if the language supports things like tail-call optimization or memoization then recursion can sometimes be a clean way to define a function
I'd be interested to know as to why the recursion was "optimal"
The recursive function was "optimal" because my attempts to write it using loops resulted in much more code, and it was clumsy by comparison, @@IndellableHatesHandles. That one recursive function was tight, straightforward and simple.
amazing explanation, not everyone thinks of visualising it
Another good analogy that comes to my mind when I watch this is that the same kind of thing happens when two mirrors face with each other. Infinite reflection that repeats itself.
You chose a good introductory example. It shows that Java does not recognize tail recursion (where the function simply returns after calling itself). There is no need to make a recursive call if the function is tail recursive. The function can simply loop back to the beginning. C compilers will convert tail recursive functions to loops but Java compilers won't. Since rewriting tail recursive functions to use loops instead is a simple matter, you should always do so when programming in Java.
Best explanation ever wish my college explained all this to me this easily :/
Thank you so much
Eagerly waiting for your next video
Clear and understandable way. It is turning to a signature of yours. Thx John for all of you create and share.
Thanks for the video, I've now finally understood recursion
It would be nice If we had lectures like you in college
YOU ARE LITERALLY FREAKING AMAZING. THANNK YOU SO MUCH FOR YOUR VIDEOS
Thank you, finally I understood a recursive method.
This video so quickly became a Game collection showing off video in the beginning.
Good explanation of the topic..
Using Zelda and Super Smash Bros for example of recursion in programming. You sir deserve a like and a subscriber.
Best visual example I've ever seen 😍 I was counting the number of video games I had as a kid when it fell over 🤣
Superb bro your way of explanation is too gud ..I cough your point a 2 minutes while watching this video.🎉
Amazing video. Definitely helped me understand Recursion in Java better. I also loved all the video games he used to show the call stack haha!
This made such a confusing topic make so much sense THANK YOU!!!
this man will make me ace my AP
Would love to see a Dynamic Programming Tutorial from you John. Appreciate your videos a lot! :D
I came here to learn how to code... but I stayed because he showed me my childhood ❤
You made recursion easy to understand
I was really destructed by what he was stacking, I was reading the name of the ............. "you know"
Keep doing your great job. Your videos are so helpful for beginners like me.
Best explanation ever😍❤
Thank you for this lesson John. Your explanation strategy works the best for me.
your way of explanation is awesome. Thanks a lot for your videos. I am continuously following your videos...Thanks Mr John.
thank you sir. I thought recursion is black magic and now I know how to do it
My problem is I understand when the answer is in front of me and I can read it but I can’t figure out the base case by myself
I wish my professor explained recursive methods as well as you did in this video.
Your videos are amazing. Keep up the great work!
Thank you! You saved me so much time understanding this topic.
Can you make a video breaking down the Towers of Hanoi? That would be another great example.
Thanks again!!
Thank you John, this video was really clear and helpful. Can you do one for dynamic programming as well?
you're simply the best!
I love your videos.
This video was really just a flex of his old school games. :D
I think this video is for John to show off his awesome video game collection XD
Nice picks, nice nice
Love your videos! Great format. Could you please do one on setting up projects in Eclipse or Intellij? I often get into an endless loop of not being able to set up the build specs. A corrupted project in Eclipse does not allow me to specify the source and library files. So, a general explanation of how projects work in IDEs would be helpful.
This video may have been just an excuse for John to show off his amazing game collection
Recursion has always baffled me (I think) because no one put it into the context of the call stack! This (THANK-YOU!) solidified the issue for me.
Supplemental: if you had another line after the call to the sayHi() method, for example add System.out.println("Bye!"); after line 12, would your result be the following?
Hi!
Hi!
Hi!
Bye!
Bye!
Bye!
Just tried it and that was the result, minus the last "Bye!" (Not sure why) !!!! Because it returns before the third Bye println is run via the if statement... iteration of:
sayHi(3) "Hi!"(3)
sayHi(2) "Hi!"(2)
sayHi(1) "Hi!"(1) return
"Bye!"(2)
"Bye!"(3)
Do I have that right? (Or am I just rubber ducking?) 😁
The Best Explanation 🎐🎐
That nostalgia intantly hit me as soon as i saw those GC Games :D:D:D
An innovative way to flex your collection
This whole channel was just a multi-year ruse to show off some old GameCube games
You've got a pretty impressive video game collection 🎮
Switching from C# to Java... I needed you John. :( I'm still writing Console.Write() xD
Very good explanation of stack overflow
This came in clutch for my java OOP class. Think you can do a GUI introduction for java?
according to the games you have you're a man of culture
What an excellent Gamecube collection!
This whole channel was a ruse to show off those games
Loved the video games demo for holding the stack... . ;)
great video for learning java
That’s a nice way to show your GameCube collection
I subscribed as soon as you pulled out that Seinfeld season
Thank you so much for this helpful video!
I love how he just casually stacks some of the best games ever made :D
Very well explained! Thank you sir!
John - just wanted to say thanks. Your explanation is very clear. Tricky concept to get my head around but I think the penny just dropped. :)
"if this dude pulls out a tony hawk game im gonna subscribe"
WOAH!!!!!!!!!!!!! Subscribed
Your exceptional John
i just want to say thank you!!! ur awesome! i subbed
Love this lecture!
I also love the fact, that recursion video is 11:11 minuts long!
Learning this for ICSE 10 grade exams from India 💖
Hey John, could you please enable the transcript feature for this video? I want to take some notes for my class. Many thanks.