Java Programming for Beginners - Full Course
ฝัง
- เผยแพร่เมื่อ 15 มิ.ย. 2024
- Learn the Java programming language in this complete beginner's course. You will learn all the main features of Java (version 17) and how to use Java for your own projects.
🔗 Code along on Replit: join.replit.com/java-students
✏️ Farhan Hasin Chowdhury created this course.
🏗 Replit provided a grant that make this course possible.
🔗 www.freecodecamp.org/news/how...
🔗 www.freecodecamp.org/news/pro...
⭐️ Contents ⭐️
⌨️ (0:00:00) Hello World
⌨️ (0:06:39) Variables
⌨️ (0:13:12) Data Types
⌨️ (0:20:27) Operators
⌨️ (0:47:33) Strings
⌨️ (1:16:42) User Inputs
⌨️ (1:35:13) Conditional Statements
⌨️ (1:46:38) Switch Cases
⌨️ (1:55:59) Arrays
⌨️ (2:27:45) For Loops
⌨️ (2:47:22) While Loops
⌨️ (2:50:20) Do...While Loops
⌨️ (2:52:02) ArrayLists
⌨️ (3:12:25) HashMaps
⌨️ (3:28:38) Object Oriented Programming
🎉 Thanks to our Champion and Sponsor supporters:
👾 Raymond Odero
👾 Agustín Kussrow
👾 aldo ferretti
👾 Otis Morgan
👾 DeezMaster
--
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This course desperately needs exercises. You may think you understood the programming concepts covered in this video but you'll see that putting them in practice is a completely different story altogether.
definitely
I mean that's obvious lol
You should practice by yourself.
@Freecodecamp - please create an advanced java course and do a couple of projects as well in Java, Spring boot etc. kind request.
Yesssss
Hope they see this!
Apply datastructures in projects
That'd be good. I was waiting for a course like this.
Yes! We need a Springboot course, that would be super helpful!
Thank you so much for making this! It's been awhile since I first learned & use Java and now I have to re-learn it. You made this complex language a lot more understandable & approachable.
Hace tres días empecé java y ahora ustedes sacan video, siempre me leen la mente cuando necesito algo jajajja mil gracias
I think the basic concepts are easy to find and learn. A lot of students needs good and detailed tutorial on OOP concepts.
Though you guys are the real W
Yeah you are right bro
They should make a full oop Java course.
We have bro code to use it is included a s a 12 hr session of all oop concpets
What is an oop?
@@jamesbyrd3740 object oriented programing.
Honestly, Freecodecamp has done so much in the decentralization of knowledge. Although, it seems to be there is a lack of Java content, specifically in the SpringBoot projects. But take my rant as a sidenote while I enjoy and digest this Java content. As always, freecodecamp rocks!!
Lacks for Groovy as well which is in my opinion great language and great upgrade which makes Java even better.
what is groovy ?@@JasonSamuel-vh1dc
if i learn java from this tutorial could I move onto learning springboot?
@@JasonSamuel-vh1dc😅a. T shirt
I sat through and coded for 6 hours 30 minutes, along with you and i feel like i am on another level of understanding it now! You should be my Uni Professor :)
Thanks for the compliments.
@@fhc9916 okay 🗿
you are awesome
Yeah but you'll need some sort of notes just in case you forget something, please if anyone has any then do share/tell me how to obtain them
In the ArrayLists part of the video, as of the the current time, you can use the set() method without using Integer.valueOf() just to set the value and Java will automatically figure it out. Take the example in the video, you can write it as .set(2, 30) and it works just fine. This goes the same for the contains() method.
Thank you Farhan Hasin Chowdhury for a great course of Java!🙏
Great refresher for relearning Java. It's been a while since I coded in it. You went into easy to understand detailed explanations. Especially on OOP. Thank you so much for making this!
It's nice see someone from Bangladesh doing great work in international plateform . I love your tutorial and Thanks you for doing this
Thank you for making this Farhan. It has been a pleasure spending time with you!
Thank you for the modular and balanced presentation.
Thank you so much for this absolute awesome course, here I start my Java journey
Thx for free courses and sharing knowledge for all 🙏
I learnt a lot from FCC ...thank You 💜
Great video. Thanks freeCodeCamp and Farhan.Just one correction at 3:12:00 , that doubling the arraylist is not always correct.For eg : if your input arraylist is [2,4,5,1,3,6] then it will give [8,4,10,2,12,6] because of the indexOf logic .(It doubles 2 to 4 in the first iteration and in the second iteration again doubles the 4 which actually was doubled from 2 rather than doubling the 4 at index 1)
I'm just starting to learn this, do I prefer to learn Java first?
Done with this!!
Thank you Farhan sir!
Thank you so much! You did an excellent job. 🎉 Enjoyed learning with you, Farhan.
Im glad this is so new! Im taking my first java class in college!
he is the best simply but perfactly cover everything in very short time . searching for his more content , fabulous man . Taka love from a Bangladeshi learner of you.
You've help me a lot in my coding learning path. I want to start working soon to support all the effort you are making
Thank you so much for sharing your knowledge and expertise. I'm waiting for your next java tutorials.
learned a lot more here than 2 months of class in our university
He is amazing! Thank you, Farhan Hasin Chowdhury
As someone whose first language was Java, I am deeply sorry whoever ended up here. There is a saying "Life is too short to learn Java."
I partially agree. It will take so much time to become a master. But if I like it, and it guarantees me a job, I'm happy. There's always time to learn other programming languages.
is learning java worth it
Great, now I atleast have something to do
Sad mindset and way to live. For sure not inspiring
@@Techshadowzzyes
Thanks a lot for this course it helped me a lot getting into java and it was done verry clearly, particularly the OOP part at the end !
Its really an amazing course. I learned a lot thank you so much
Nice😎
Always good quality content
Hyped up to learn java 👍
hello I am Rechan I am 11 years old and I am studying programming . thank you Farhan sir.
Already Learned Assembly At Age 20 and this programming language is next!
thank you farhan you just saved my career
I think that when you use the forEach method, it does not do what it should.
You start with [5, 3, 1, 4, 2]
Because the lambda function looks for the index of value, the iterations will do as:
the forEach will go sequentially through the ArrayList, i.e. will try pos 0, then 1, then 2, ...
0 - look for 5 (), finds it at pos 0, and doubles it
ArrayList is now [10, 3, 1, 4, 2]
1 - looks for 3, finds it at pos 1, and doubles it
now : [10, 6, 1, 4, 2]
2 - looks for 1, finds it at post 2, and doubles it
now: [10, 6, 2, 4, 2]
3 - looks for 4, finds it at pos 3, and doubles it
now: [10, 6, 2, 8, 2]
4 - looks for 2, but first occurence is at pos 2! so doubles it
now: [10, 6, 4, 8, 2]
So the final answer is [10, 6, 4, 8, 2], which is not a list of the doubled elements of the original one.😉
Otherwise, great course, I really enjoyed it!
i was looking for this comment! thanks for the explanation, it really helped, i was super confused when i noticed it wasn't actually doubled
@@haadiyasajid9035 Thanks for the pep talk!😀 As I first felt the same way, I went through it and eventually understood. Let's keep working! Cheers.
Yeah I noticed that long after the video was live. Apologies.
@@fhc9916 No worries! That really is a minor issue regarding all the time and efforts you put in this course. Thanks again! Cheers.
This comment needs upvotes great explanation! How do you solve it tho?
When I heard his voice I was guessing Farhan sir from Bangladesh
Nice to see him in the best code camp❤❤❤❤
thanks for the great knowledge. This course is awesome .
Hi Beau, great job as always.
However I miss the chapters in the video
You guys like can read my mind! Thanks🎉
Thank you so much, I found this so helpful!
Thanks for the tutorial!
when i get enough money ill definitely support y'all.
I wrote a total of 532 lines of code following this video. This is a really helpful tutorial for beginners. Although I have learned Python prior, mentioning the methods and their creating would've been helpful before going into the OOP part. No offense, but I think I have an Indian accent immunity now.
Thanks!
There's no way, I have the Java Oracle docs opened, was searching for a tutorial and you guys released a Course just in the perfect time. Thanks.
edit: Just finished watching and taking some notes, the video covers everything needed to start programming in java and even gets the basics of OOP. Good work!
hi
hi
I was looking for java tutorial.Suddenly it popped up in my recommendation.
Waiting for the course buddy.. 😊🤞🏻
Thanks For Giving Us Great Knowledge🥰🥰🥰
3:02:00 if you are using vs code, you can skip the Integer.valueof part and directly write the value you want.
It's actually true even if you are not using VS code.
Hello! Cool content, very good video! Thanks 👍👍👍
I recommend this book jumping into c++ by Alex Alain. Good read, details everything from constructors to dependency injection.
Next Spring Boot tutorial projects, please!
I feel proud to watch this tutorial from a renowed tutorial platform by a Bangladeshi!!! Thanks Farhan Bhai for making us proud....
how do u know its from bangladesh and not from pak
@@Boltkiller96 cuse he says hes from there
I'm curious. How many non-trivial Java programs import the scanner class versus how many do not?
I learned first python then c++ now learning java.
I learned first C next python now Java
Would I prefer to start with java ? Any tips for me
Wow I was just thinking about starting .Read my mind lol 😆
Watching this after learning javascript this is like completely different language.
When, you run forEach and updated the same arrayList by multiplying each element by 2, the indexOf method took the first value of 2 which was updated by multiplying 1 and again it just changed it and kept the last 2 intact. timestamp 3:11:00
great video. full of wisdom
Always the right timing
Please make a one shot video on C++
Java, Ruby, Pearl are the languages that I wanna learn next.
Learn making money instead. 😂
All dying languages lol
@@QuOUseTERSEa they are not dead tbh
Ruby seriously 😂
thanks for the amazing course
Love from bangladesh sir.Great job.
Please do an advanced Java course. I’m currently software student and would like to learn more.
I think many course don't explain why. Like example system means your computer operating system Dot . Is like a / in your file, example user/new folder/download. Out is to export. The println is a function that print as the name stated. Here is complete explaination of this: system =(your operating I asume) dot . = (like a directory path separator : user/new folder/download) out = (output or export) dot=(again) println = (a function to print). With that breif explaination why and what it do could make the coures underststandable as the core which is the concept.
At 3:11:19 there is an error in the program where it set the new value of array list is twice of it's previous value. But in example it [5,3,1,4,2] sets to [10,6,4,8,2]. So we can see that 1 was set 4 and 2 remained unchanged.
The code is incorrect because the method indexOf(n) always returns the FIRST occurrence of n. Therefore, when 1 becomes 1*2 = 2, there are actually two occurrences of the number 2 in the array. However, the multiplication is still applied to the FIRST number 2 found in the array, which leads to the error.
It's a pity when the author didn't pay attention to such a basic error.
@@KhacHoanPhamthanks for answer!
How would you go about doing what he intended? Is there a way to pull the index of the item your on while using foreach?
How do you fix this error please?
Very informative video!
it was helpful. thanks!
Thank you so much!
Thanks as always
I have a question, when I opened a new file in the same folder, coding and run it, it had error, and I had to delete the old one to run it well, may you help me?
You guys never disappoint me
Nice course dude !!!!
Hi, I am a java developer working as a software developer for more than 2 years. Can anyone tell me what I should learn and how I should grow in my career? There is so much to learn and I get overwhelmed and end up not learning anything
Finally we can produce instant legacy code
Hi could you please make a complete course on Java GUI JFrame. How we can load data reading it from a text file and connecting to a database and load data in JFrame so show desired information to the end user.
In my drop down list, I can only find Java (Swing). Is that the same as just Java?? Any help will be appreciated.
At 2:46:55 , shouldn't we write sum += numbers[number] in line 9 to sum the array?
Thank you so much sir
hello, i could not understand how u changed the name of your main class code which has the .java . Whenever I tried changing it after changing the name I couldn't get my codes work done. The code results always come the same. Pls help
Thank you ❤️
Thank you so much.
55:45 Good job Bangladeshi bro, nice to see you. 💝💝💝
bayya for gpa we want to use format specifier as %d but you used %f how is it possible
%d for integer where you cant get decimal values so we use float (i.e)%f inorder overcome such situation where float accept decimal values too
I have a simple question
For below program
int[] numbers= { 1 , 2 , 3 , 4 , 5};
int[] copyOfNumbers = Arrays.copyOf(numbers,10);
Arrays.fill(copyOfNumbers, 0);
System.out.println(Arrays.toString(numbers));
System.out.println(Arrays.toString(copyOfNumbers));
When i run program i am getting
[1, 2, 3, 4, 5]
[0, 0, 0, 0, 0, 0, 0, 0, 0, 0] . Is this correct
Please do a video on all design patterns in Java.
Wooooww wooow wooww fresh new VIDEO!
I voted for it and it's here now 😁✌️
Good job....
I need help finding the config and the entry point. Suddently the video went from using main.java to his screen is using helloWorld.java, I am not clear how to make that happen. Can you help with this over simple request?
How would you make a calculator that asks for the first number, then the operation wanted, then the second number, and then does the math requested by the user?
Ai sim.......... Obrigado!!!
i have a question for the second part of the video after the age part how can i copy that code he has so i can work along with him
Hello. can someone recommend a project to do after completing the course? Thanks
Thank you techer.
why it says toString can not work with char. when I did "Arrays.toString(vowels)" at 2:01:28 in the video.
THANK YOU
what version of Java was used for this tutorial?
Is the source code presented in the tutorial available in writing so that one can try and debug by himself?
Sir my kind request to you
Please make course on artificial intelligence and robotics
Please sir
how is he seeing those DOS like commands before the coutput on the console, just before the output Hello World? i am into the first few minutes of the video
Can someone send me link to practice these lessons? Thank you so much!
In the oops area, concepts needed to be outlined first since the course for beginners.