Intro to Java Programming - Course for Absolute Beginners

[@Iknowpython]

(0:00:00) Introduction (0:06:18) Variables & Data Types (0:17:55) Basic Operators (0:29:36) Input and Scanners (0:38:40) Conditions and Boolean (0:49:54) If/Else/Else If (1:00:08) Nested Statements (1:07:18) Arrays (1:15:29) For Loops (1:24:46) For Loops (Continued) (1:34:10) While Loops (1:40:50) Sets and Lists (1:55:25) Maps & HashMaps (2:16:09) Introduction to Objects (2:29:05) Creating Classes (2:44:06) Inheritance (2:57:50) What Does STATIC Mean? (3:07:02) Overloading Methods & Object Comparisons (3:17:37) Inner Classes (3:25:23) Interfaces (3:37:32) Enums watch my channel also for some good python projects

[@pointless132]

Why did you copy and paste something from the description?

[@davidallendominden4948]

@@pointless132 you cant press the timestamps in mobile. But it works in the comments.

[@prachi_s_h]

Thank you!! 😍

[@madhuvasanth7235]

@@davidallendominden4948 youtube read your comment now you can click timestamps on mobile :)

[@epheler3926]

do u know java?

[@danelledalee8173]

I wish all courses were this straight forward. You didn't spend 30 minutes telling me to subscribe or buy products. You are the hero I didn't know I needed.

[@Ugtop10]

I started watching this video on December 12, 2022; it was a Monday, and I have been watching, writing, and practicing each step for a week or more. To this date, April 27, 2023, I have completed this course, and it was worth it. 4 months watching the 3:48:24 video-surely it was worth it. I'm proud and thank this channel because Java is now clear to me, and I'm looking forward to achieving my goals.

[@nox7925]

Your comment inspire me to continue learn Java

[@suyashkumarjaiswal6831]

Thank you bro for sharing your experience. I actually feel very low about myself because I used to think that a 4 hr video can be easily completed in max to max a week. I also have been learning Java but I'm stuck on OOPs concepts. Now I will not be worried about time taken to complete the course.

[@Ugtop10]

@@suyashkumarjaiswal6831 The best feeling is understanding every step. Only focus on this video until you finish it. Take your time, brother. Even if you get overloaded in a day, at least get a few minutes and write in your journal what you remember about the previous topic. Keep it going every day, it pays off. I wish you the best.

[@suyashkumarjaiswal6831]

@@Ugtop10 Thanks a lot. I will surely follow your advice of writing out whatever I remember. It's very interesting thing. I can improve my writing skills as well as revise my concepts ✨👍🏻

[@Ugtop10]

@@edwinmanzano5482 I used to watch the chapter Once and write down every step in my journal, then practice it on my PC and continue writing what I learned every day until I mastered the chapter, and then go back and watch another chapter and do the same again and again.

[@vitruvian7875]

As someone who's teacher is actually teaching us anything and just talking every class.... thank you for actually teaching me something

[@iho2437]

Tim is the man. I know he speaks kind of fast for some people, but his pacing is perfect for me.

[@RocknRollDina]

I love this kid's teaching style. And I mean kid in a respectful way. He's young but the way he explains things is so easily understood, I watch him on his channel also. Thanks Tim!

What's his channel name?

[@RocknRollDina]

@@NirtyDigger You dont like yourself

[@nothingelsematters8217]

Kid.....he..naa.he is a name 2 be remembered...... How old was ...great young men Who lead nations in old time .. Alexander.....how many city..... The problem is after industrial revolution and ww3..... It destroyed the comming generations.... (Industrial revolution....just made people ...slaves 2 sex drink ...drugs. 💰 money.....selfish..... So when you see some break the rules 🤔 and spreading the knowledge to others..... They mention in old 📖 book wrote 2000 years ago... such people ...🤟

[@ThaeSpoop]

@@nothingelsematters8217 Did you just have a stroke while you were typing?

[@gabrielalmeida5047]

@@nothingelsematters8217 oh yeah, back then nobody was into sex drinks or drugs. Sure.

[@Malkovith2]

You are teaching more in 4 hours than I've learned in 4 years in school.

[@hyperspace2223]

Overused comment but true

[@munirakesh3347]

Righhht

[@sanjuktachowdhury6639]

Exactly 😅

[@kace6107]

@@munirakesh3347 uu

[@munirakesh3347]

@@kace6107 mm

[@aminabdi7026]

at 2:15:12 , instead of a 'for loop' to print the values, you can use a print statement like this; System.out.println(Arrays.toString(x)); Explanation: It returns a string representation of the contents of the specified array. This is the better practice because you should not create multiple for loops just for printing.

[@maxibi]

3:09:21 The method equals() is already created by java as a built-in method (as an object comparison). Even if you don't create that, you can still access the equals method but it specific to object comparison. If you create equals function in the Student class, you are overriding the equals method for the object comparison with something else. The if-else-statement can be simplied as oneline: return this.name.equals(other.name);

[@shivaneshkumar7292]

It took entry at the perfect time in my life...... Thank u....

[@sriglin1]

So, I'm taking a Skillsoft course for Java SE 8 at work in my downtime and I gotta say, man; this series of tutorials have been way more beneficial to me than any of those online courses. When I study along with you, I know exactly what's happening because you explain things so simple yet thorough and ask questions in a way that is easy to understand. Thanks a ton, man!

[@S.O.N.E]

@@SkulzR You know you gotta actually follow the tutorials right?

[@jmfl8929]

I agree

[@filippetrovic6670]

hhhhmhhhhhhhhj60

[@mrquackers3]

People know what to expect from from a minute minute minute

[@matthewgallagher5641]

Don't use semicolons until you know how to use semicolons. If you would like me to teach you, just yelp and I'll be there, pham.

[@jeremy_montero]

I start with basic program in the university, and I don't understand nothing with that professor, but this guy really explain so good, I understand fast and get a clear idea. Really appreciate these people :)

[@Danny-ru7uf]

Thank you so much, my comp Sci professor just straight jumped into the course without explaining the small crucial details leaving me really confused but your course has helped me a lot! Thank you!

[@kara63gahharrington1pf9]

I am Chinese.Though it's hard for me to understand, but I am trying my best to learn. I love this video for not only learning coding here ,but also learning English here!

[@radiotory]

I agree with you! Two birds with one stone!

[@shivajivishnoi7648]

is youtube available in china

[@NomingTheNom]

@@shivajivishnoi7648 good question, maybe he´s somewhere else

[@Jay16Mar]

Just started a course that requires me to code in Java from scratch after a 6-8 month break. Great refresher video!

[@CARSMullingar]

You are probably the only way i am going to make it through my software engineering degree. Thank you so much man. i agree with all the other guys who say your teaching method is epic!! please keep up the good work.

[@PurpleDovee]

did u make it bro

[@dominicluu6460]

My name is Luu and i’m from VietNam. English is not my advantage. But he explains everything slowly and easy to understand. It is much better if there is some excercise for newbie like me to remember anything were taught.

[@nazirnazir1099]

Man you're an absolute legend, I'm not even finished watching yet but had to leave a like and a comment. Thanks for your help!!

[@badhonbiswas3751]

This channel is golden .They changed our life .Hugs Respect all the teacher ..

[@akumasdeception]

I love how concise and to point he is.

[@Joe_65]

This course is organized well and the instructor helped me understand some of the topics I was unable to grasp from other courses, excellent job!

[@draculinalover]

this dude taught me Java more efficiently than any of my professors could have. Thank you dude oof

[@BeTruthseeeked]

The way he is teaching is much better. Hands on along with his steps and I got it right away. I tried to study with the other online course just made me sleeping in front of my computer. 😴😅

[@abdallahalmanasrah6343]

If I could like this video every time a new section starts, I would do that. Absolutely helpful and beautiful!

[@ASHUTOSHJAISWAL-mr8wk]

I've been learning app development for a while, and this video is a great addition to my resources. Keep up the good work

[@samarmohana6429]

i've not finished this video yet but i am a complete biggener ive never watched anything about coding before this is my first ever video and so far ive learned so much about variables and integers and much more and like ive already said im a complete newbie this guy is so clear and gets to the point definetly recomend watching this

[@TheCitizenRemy]

This is excellent. Speaking with clarity and intention of explaining the logical process rather than focusing on the syntax. Well done.

[@richardhu3774]

Finally, a video that is really understandable for beginners. Thank you so much.

[@eduardoalvear3142]

Thank you. You are a great professor. You go fast and get to the point, not wasting valuable time.

[@ApexMathematicsInMotion33]

You have nailed it to the core brother,I tried other videos and was more confused. until I run into yours. Great work.

[@caz5021]

Dude thank you so much! You are seriously a saint for teaching things to people in a clear and concise manner FOR FREE! If you have a patreon or selling merch, I’d happily contribute! Thanks again for all your work! You truly are a man of the people!

[@TechWithTim]

hey! I do have both a patreon and merch. Any donations would be greatly appreciated! You can find them in the description of any of my videos

[@guildedpickle4755]

I think the algorithm knows when I've fallen asleep. I'll fall asleep to videos of people working at machine shops, only to suddenly be dreaming about variables and inheritance. Happens all the time.

[@felixthecat9391]

I have a java test tomorrow and watched the entire video for recap. Thank you!

[@sarthsarode]

Bro thank you so much for this vid. You are teaching more in 4 hrs than school taught me in 4 months

[@humphrylomuria8015]

Another possible solution for the first Exercise is: //Exercise how often is a letter in a string stored in a map String letter = "Hello World, this is counting the chars!"; Map numChar = new HashMap(); for (int i = 0; i < letter.length(); i++) { char curChar = letter.charAt(i); numChar.put(curChar, numChar.getOrDefault(curChar, 0)+1); } System.out.println(numChar); for (Map.Entry entry : numChar.entrySet()) { System.out.println("Character '" + entry.getKey() + "' occurs " + entry.getValue() + " times."); }

[@damsel72]

🙏 I know nothing about code or even computers...except how to turn them on and off. I guess it’s time to learn. Great teacher 🍎

[@joekanaan2548]

Did you learn how to restart a computer

[@charlie3k]

Great tutorial so far! I would say from 3:07:02 (when he begins to explain overloading methods) is when the tutorial begins to not make sense. It becomes more of a "type what I type", which doesn't really help because it's where explanation matters the most when dealing with such abstract/higher level concepts.

[@MisterWealth]

He did this in maps section too, in hashmaps he said use all your knowledge I taught here, meanwhile he didn't teach half the stuff, he just gave definitions not how to use it together once.

[@chifuyu7902]

Yeah I agree .. It was when I started getting confused..

[@melamoris6728]

This literally came at the perfect moment!

[@DifficultWorld7]

really i just think to start learning java

[@blanka4545]

Without exercises or quizzes for us to learn big flaw

[@MakeWay4CJ]

[@typicalretard6968]

@@blanka4545 no. It's called practice. Ever heard of it?

[@wildjorphneydorvilas7758]

@@MakeWay4CJ yogu want it to be preparyoued fee is it is right now is pa t ap enposib pou tout moun pa gen okenn swivi y pa t in I will be there in a

[@khaoulakanna4227]

Thank you Tim. This is the best Java course of all the ones I've tried out there. I was almost going to give up. Thank you.

[@ddgs5164]

I still remember when I sang (in my head) the "public static void main string args" during my class lol

[@elijahnazario2072]

what class are you in?

[@gsrthegreat7470]

@@elijahnazario2072 lol

[@starryskies113]

@@gsrthegreat7470 ?

[@gsrthegreat7470]

@@starryskies113 what?

[@BMWfreak19]

great tutorial! I use it as a repititorium for test preparation. One thing I noticed tough is, you said that with "==" used on two object, you check if they are the same object. I think the "==" only checks if the two objects have the same reference variable in the stack (so "bill" and "joe" in this case). Since they have different reference variables "==" returns false. If you wanted to check if they are actually the same object in the heap, you'd have to use the ".equals" method like bill.equals(joe). In that case it would return true of they are the same object, even if they are referenced by two different reference variables in the stack.

[@cstrovn]

Great tutorial by Tim, as always. I'd add though that at 46:20 he goes by explaining how !(x > y || z < y) will return false because ! inverts the "true" value of it. I'm sorry, but that's not how it works. You need to look into logic operations, when we have "OR", that is, you compare two values, if one condition is true, the statement is true as well. The thing is, when you deny a sentence that contains OR like this case it becomes AND and true value only happens when all conditions are met. So in here: !(x > y || z < y) you actually read NOT x > y AND NOT z < y (and since it's AND, both need to be true for the statement to be true). I recommend researching Morgan's Law!

[@sinnerman-i4r]

This programming warrior is made for a far greater language than Java (i.e. Python) I am a python programmer too but the interview I am attending needs Java so thought of going through it. Its never bad to learn something new :)

[@abhilashshettyk6945]

I have seen many courses in YT on JAVA trust me this is the best course where all the concepts and logics have been covered, literally worth completing this guys course

[@krishchurasia681]

What about the other Java courses of freecodecamp ?

[@chrischika7026]

@@krishchurasia681 did you find out an answer.

[@chrischika7026]

@@krishchurasia681 I checked and I have seen negative reviews for them

[@patrycjachrx9804]

This was so helpful. Im doing Java at my uni and I have no idea what is happening. You've presented everything very clearly so thanks a lot.

[@drop_messages6226]

This is a great Java tutorial, he is "fast paced" as in, this video does not spend 10 minutes to explain one concept (someone like Cave of Programming's channel is more slow paced , takes its time to dive into each concept) A suggestion to you new students, around the 29 minute mark, he talks about ints, doubles, math and arriving at answers expressed as decimals. That is a great point to stop and google how to limit the decimal answer to, say 3 decimal places. I am not trying to say that this video is bad or lacking in information, I think that it is good practice to get into the habit of doing your own research and getting familiar with sites such as Stack Overflow, this way you can absorb information from multiple sources.

[@xeri4697]

Good video, nice explanations. The guy definitely knows how to teach Java. Thanks for uploading.

[@carschmn]

This is very helpful. I’m getting back into Java after barely passing it in college 2 years ago. It’s rough.

[@kimeeeoow]

A great refresher for someone like me who has been working in a different role for years and switching role that uses Java as PL :) I'm always scared of this language but when I watched this I think I can handle it again :D

[@Mowaten8Masry]

you're significantly awesome, never easier to understand as a beginner, like i know it already... BIG thanks Tim.

[@Mythologos]

This is excellent. I do 2 units a day: I redo yesterday's unit and then I do the next one etc. Very well done and easy to understand!

[@zbbzbb4761]

nice way to learn, might do that as well too

[@seanc411]

Good idea, by units do you mean 2 chapters? Or two videos

[@decaying_matter]

@@seanc411 chapters, i think

[@25Umbra]

I am actually a full on beginner I haven't done programming before but I wanna get into it thank you for making this video. I am watching it as I am writing this.

[@MPaz-fh4tx]

Perfect video. Just the exact speed that I like to learn something new. Thank you so much!

[@JayMaverick]

Funny, every time I find a good coding tutorial on the interwebs, Tech with Tim isn't far away.

[@robinmutwiri1176]

Thanks Tim. This is quite a good intro to java. great work man :)

[@CommanderZerg]

Thank god its in dark theme. So many tutorial have the bright white theme and it absolutely kills my eyes.

[@sivasaran4]

I learned can i jump to android development

[@CommanderZerg]

​@@sivasaran4 Sure. Most important is to start. You'll figure it out. Good luck.

[@sivasaran4]

@@CommanderZerg thank you👍

[@alephnull423]

Failed my college Java course so now I'm here

[@oof8756]

oof

[@officialkoolwag5996]

My very first time doing anything with coding. I like the video so far! I’m determined to learn

[@tnshark3127]

This is really good, and I really wanna say thanks for this as it made my beggining in programing so much more fundamented. Thanks for everything!!!

[@SIlentZedrikMusic]

I find this really helpful when you explain things verbally and not "Non-verbally" such as showing the definitions of terms through sentences on a picture. I don't know why but your method of teaching helped me.

[@rpprevost]

So even after you just said how his method helped you, you still don't know why it helped you?

[@samieyo8689]

WOW finally,I found best java lesson.Thank you so much.

[@brandonreyes2751]

New to this programming world, but this tutorial is simple and easy to understand, thanks dude!

[@abdallahalmanasrah6343]

A huge trick is that if you type [sout] and hit the "tap" key, it will type the entire [System.out.println()] for ya! Really helpful shortcut that makes your coding a lot faster. Peace

[@ChiKiNGaming]

That's in Intellij, in eclipse it's sysout tab

[@bobDotJS]

I've always been a C# guy. I fell asleep watching horror stories on YT and woke up 3.5 hours into this video. I think YT is playing some subliminal games.

[@ashishgoswami6303]

Hmm. Do you know why java programmers always wear glasses ? Coz they can't C#

[@thorfinn2564]

@@ashishgoswami6303 lmaoo

[@shahryarhumayun538]

@@ashishgoswami6303 LMFAO

[@eijonasson]

Get some help.lol

[@bobDotJS]

@@eijonasson I did. Now I'm a node guy

[@spectrm6014]

Tim, pls be my professor XD Youre the greatest teacher ever lol

[@taylormuhrline2051]

Great video! For anyone who's lost by the speed at which he teaches, i'd recommend starting with an easier language than java to get a feel for the basics

[@ViolinistJeff]

So if I know absolutely nothing about computer programming, which language should I start with? C? Binary? lol

[@this_is_future]

@@ViolinistJeff c

[@will_warrior351]

Finally finished it, this is great can't wait to make those super difficult programs with java!

[@trinitycoxvasconcelos5230]

This video was so helpful! I struggled with this topic a log in high school, so I was afraid to start all over again in college. This video showed me that I can learn Java!

[@Sjimbwow]

Where do you live?! Sounds crazy to me to learn coding in high school!

[@trinitycoxvasconcelos5230]

@@Sjimbwow I went to high school in Indiana! I thought it was pretty cool! Our teacher learned with us, but it ignited a passion for me to learn in college!!

[@thelalomorales]

yeah that was a goooooooood video!!! thanks for the info man. about to ace my intro to java midterm now

[@shakarafa]

Saying "zed" for the letter z sounds much professional than the American "zee" I will add this to my vocabulary :)

[@husseinwahussein4992]

For some reason I can't agree with u

[@manidhingra5192]

@@husseinwahussein4992 yeah I'm from India and it still seems a bit odd

[@abhinavyadav13]

@@manidhingra5192 bro indians pronounce z as 'zed' too. We follow UK english. LMAO. You are the odd one out if you say zee instead of 'zed'.

[@manidhingra5192]

@@abhinavyadav13 exactly, Indians pronounce the letter "z", "zed" so it being odd seems out of question for someone in India yet it still is, I never said I was right or normal, but that it seemed odd to call it "zed" even for someone who has been living in India for years where it is common. perhaps because my parents never use it that way since they don't like it as much (they were both born in India and married there). I am the odd one and that is why I commented on the topic. edit: I followed UK English even when I lived in the US and got in trouble during school because of it. I know my stuff considering I lived in the US and Canada for many years and never failed a single thing in my English classes, not even an assignment. don't try to act like you know more than someone you don't know, especially before double-checking yourself

[@trigophers]

nah it requires more articulation, something that is useless when you want to talk fast or don't want to think too much.

[@asgerali1111]

watching from INDIA,lots of love

[@alexradu1921]

Really liked the challenge at 2:06:20 (Given a String, store in a TreeMap the frequency of all characters). I came up with this solution: import java.util.TreeMap; public class Main { public static void main(String[] args) { TreeMap letterFrequency = new TreeMap(); String inputString = "alphabetically"; for (int i = 0; i < inputString.length(); i++) { char currentLetter = inputString.charAt(i); if (letterFrequency.containsKey(currentLetter)) { letterFrequency.put(currentLetter, letterFrequency.get(currentLetter) + 1); } else { letterFrequency.put(currentLetter, 1); } } System.out.println(letterFrequency); } }

[@olbluu3163]

Can you explain this line by line for us newbies HAHA tia

[@gryoz1323]

Honestly, this is helping me so much more effectively than any other online guide.

[@PixelleHearts]

I went to a Python intro class that basically taught the similar fundamentals but it took half a year. I know it isn't quite the same, but your clarity and examples would have worked wonders for teaching a programming class like this. I learned all the basics of Java from this series of videos and clips faster than I probably would for my accredited coursework; the only difference is that I am not constantly getting drilled and having to do meaningless coursework and labs over weeks. Thanks for the help. You are the realist coding homie! Edit: I know repetition isn't meaningless for coursework... but literally every week of my class was like the equivalent of one of your chapters and we would have to constantly do projects and not progress. Maybe if they incorporated several fundamental skills at a time like you did, it would have felt much more fun. Going to enroll in some Java coursework and hopefully have all of this content in mind and breeze through it.

[@demonize.6667]

I watched this once and now it haunts me in my youtube recommendation

[@bhampton1969]

A fantastic tutorial. Easy to follow and understand. Would recommend to any beginner. Great Job!

[@AjaxxG]

At 2:14:40 you can actually do System.out.println(Arrays.toString(arr)); it'll print the array without a hard coded loop. Learned this when making return type methods 👌🏾👍🏾

[@bojacksworldwideweb]

Thanks for the help mr. and with that being said, Java is actually more challenging than JS bacause it requires much more code for simple tasks such as printing statements or running loops!

[@patrickbaumann8616]

Thanks! Really useful. This helped Java "click". I started to stop the presentation and type out the line of Java before the instructor did. It helped me learn really fast. (I do have extensive experience in C -- that helped.

[@HarshitKumar-dy3bs]

Thank you very much Sir for this video. I was really looking for such an exhaustive video tutorial on Java and this came to my rescue. The vast number of examples with very good explanations and a clear voice makes it easier for any beginner to grasp easily. Thank you once again :)

[@peterle1957]

This video has great education value but this man's voice is also very soothing and I could fall asleep to this.

[@thethinker8717]

God help us all to focus on it's 3:48:24 hours 🙏

[@megicalfootball3128]

ameen

[@euwofbw]

@Dry h Gedba 3 hours video usually turns into 30 hours if not more

[@chaitanya316]

Lmao! 😂

[@al8389]

Please, help us to don't sleep after work and seeing this!

[@JonnieDarko316]

Just pause and live a time stamp followed by the topic

[@HARIER416]

Thanks a lot mate. I guess thats pretty much basics of java. saved me the trouble of attending a full blown course on java. You have covered most of the syllabus. I took a couple of days to watch the full video. You totally rock Tim. Have you done a tutorial for python too???

[@dixonmane]

I fell asleep with KZbin autoplaying videos and this is what I awoke to 💀 I'm basically a genuine now

[@bleepbloop2242]

watching youre first 30 sec explanation of an int is so fking helpful, all these other onlince courses use such profound words that doesnt mean sht to anyone who isnt already a programmer

[@6-aronitshaw588]

Yt is the best app for learning programs... None can deny

[@wattsonthetube]

Thank you for creating such a clear and succinct basic tutorial for learning Java. I've learnt a lot from watching this video / series, and I'm sure it will be useful as I approach more advanced topics. Happy coding! :)

[@erestmakrimakrimakri9997]

Ggggghg to go GGG gh

[@erestmakrimakrimakri9997]

Gg jggihhh

[@sebolio]

i dont even edit videos and still watched some of this course, just because it's entertaining to watch

[@TheLionheartCenter]

This is amazinggg! I'm taking Java this semester and this is fantastic for prepping

[@leenchoochawaka7955]

Hey, how helpful was it ?

[@MessiahGables]

this guy is rlly good at teaching i watched like 100 of these typ of vids and got no were but this is is awsome XD

[@samlloyd7244]

This is incredibly helpful!

[@ledje761]

I am very impressed about the quality of this tutorial and the all channel in general. More than thankful !

[@Milanpng]

Thx for this good course! Keep up the great work!

[@hbmgpu]

I fell asleep listening to a podcast and woke up 3.5 hours into this course

[@Flora-ho4eo]

Wow, I was impressed with your teaching style. Very understandable and very thorough. Thank you so much!

[@zqqn]

i fell asleep and woke up with this video playing, i love your voice

[@peaceful-atmospheres]

I feel so retarded... but I have a 5 year old that I want to teach programming to. This is the future. Pray for my success world.

[@BigGlokk]

Window -> Preferences -> General -> Appearance for the darkmode like he has in this video

[@dadada92]

You are such a good guy 👍