r/learnjava 13h ago

Guidance to start java full stack

6 Upvotes

I completed my graduation in 2025 it's already a year wasted by self learning. l simply cannot learn on my own i just keep jumping from AWS to data analysis and now i want to take a paid coaching from a good coaching centre. It's for like 6-8 months of duration in java full stack by the time i complete the course it will be almost 2 years after graduation so a bit scared but want learn and get a job.Any suggestions that can help me guide and don't wanna lose my path to get a job.


r/learnjava 1d ago

Help for java 21 ocp 1z0 830 exam

9 Upvotes

Im planning to give this certificate exams cause I want to gain deeper knowledge in java and having an exam to focus on gives me a goal to achieve, so im more of a visual leaner and want to start with a pathway of videos and courses and then do practice exams, this is my strategy so far.

Im not that eager to read books or articles and prefer videos and practicing along.

I see oracle has a learning pathway that's build for java 21 programming and it has a pathway that looks good. So im trying to see if anyone has tried the pathway and found it useful for the cracking the certificate examination or are there any udemy courses that I could take that helps with my certification.

This is the pathway https://learn.oracle.com/ols/learning-path/become-a-java-se-21-developer/117252/138845

Also let me know any useful site that have a lot of practice questions to try


r/learnjava 4d ago

Coding help for java

0 Upvotes

Guys help me,how I am able to learn java who don't know about coding at all , please give me legit answer and what are the steps I should follow after watching tutorial , please help me guys,want suggestions like if I watch one tutorial per day of any yt channel ,what should I do next after watching tutorial and in a month later


r/learnjava 4d ago

Relearning the basics

20 Upvotes

Hi everyone, I unfortunately was a person who used ai a lot in my intro to java class, would anyone have some resources or very good videos or even tutor sources online that could help out with me relearning some of the basics?

DO NOT USE AI, it blows..


r/learnjava 4d ago

Senior suggestion!

0 Upvotes

Which language should i start DSA (product company)

- JAVA

- C++

- PYTHON

- OTHER


r/learnjava 5d ago

Java programming course in C&C academy ?

0 Upvotes

Any review about taking tesda course espicifically on Java programming course in C&C academy ?


r/learnjava 6d ago

Recommendations for a transition from support/devops to a Java developer

8 Upvotes

Hi everyone,

I’m currently interning in a role that’s primarily DevOps and Support focused.

My daily routine involves:

Managing builds and pipelines in Jenkins.

Writing/enhancing pipeline scripts (mostly Groovy).

Linux server management and general troubleshooting.

While I enjoy the infrastructure side, my goal is to switch to a Software Development role. I’m planning to dive deep into Java and Spring Boot over the next few months to make the jump.

A few questions for the community:

Given my background in Jenkins/Groovy, what’s the best way to leverage that experience when applying for Java roles?

Are there specific Spring Boot modules I should prioritize to be "job-ready" for a junior dev position?

If you were in my shoes, would you focus on building a portfolio from scratch, or try to automate/build tools for my current internship to show "dev" impact?

I’d love to hear from anyone who has made a similar switch from Ops to Dev!


r/learnjava 8d ago

Mooc Java Programming I and II notes PDF?

6 Upvotes

Hello,

I recently started with the Mooc Java course to refresh my knowledge a little bit and was wondering if anyone has made a PDF file with all the important notes from the course.

Would really appreciate if you could link it in the comments.


r/learnjava 8d ago

TMC Beans not opening project folder

2 Upvotes

Hi, I would really love to learn java to do some basic modding, and following the advice of this subreddit I've downloaded the MOOC course and even looked at the help page to figure out why TMC Beans was initially not loading.

Well, now it is loading, but instead of opening the project exercises, it just goes deeper into the folders. So I'll click the Part 01 Sandbox assignment and instead of opening the Project, it just shows the src folder (and you can keep clicking within them).

Does anyone know any fixes for this? I've been trawling the internet and I cannot seem to figure it out.


r/learnjava 8d ago

Looking for advice: Flutter Junior → Java/Spring Boot Backend

2 Upvotes

Hi everyone,

I’m a Junior Flutter Developer with around 2 years of project experience, but I’m currently struggling to find a junior Flutter job, and I work in Egypt as German Speaker Customer Service Representitave with B1+ level

Because of that, I’m considering expanding my skills into Java + Spring Boot backend development instead of relying only on Flutter.

My plan is to learn:

Java → Spring Boot → REST APIs → PostgreSQL → JPA/Hibernate → Spring Security/JWT → Testing → Docker → Deployment

I’d really appreciate advice from people working in this field:

  • What is the current future of Java/Spring Boot backend in Europe, especially Germany?
  • Are there realistic junior/entry-level opportunities?
  • How difficult is it to get the first backend job with no professional backend experience?
  • Would combining Flutter + Spring Boot make my profile stronger?
  • Is this a good career move in 2027/2028?
  • Is there hiring and visa sponsorship for Juniors Spring Boot Backend

I’m not looking for generic advice — I’d really appreciate hearing from people who are actually working with Java/Spring Boot or hiring backend developers.

Thanks!


r/learnjava 10d ago

Project ideas

4 Upvotes

Heyy everyone, so I recently completed my Object Oriented Programming course and I solved problems using intellij java and scene builder for the UI. I also made a project but I'm looking for some ideas for projects that I can create using the concepts I learnt throughout this course. I really enjoyed learning everything so any suggestions are more than welcome. Also please suggest project ideas that'll be good for me when I apply for jobs in the future.

Thanks in advance!!


r/learnjava 11d ago

I want to learn Spring Boot

53 Upvotes

Looking for Spring Boot Resources

Hey everyone! I already know Java and use it regularly for DSA. Now I want to learn Spring Boot specifically for building real-world projects and becoming job-ready as a Java backend developer.

Are there any resources similar to the ones people recommend for learning Java/DSA Like MOOC.fi?

I'm looking for something that covers Spring Boot from the fundamentals to building production-level projects, including things like REST APIs, Spring Security, JPA/Hibernate, databases, JWT, microservices, etc.

I’d really appreciate recommendations for courses, YouTube channels, documentation, project-based tutorials, or roadmaps that you’ve personally found useful.

Thanks!


r/learnjava 11d ago

I know MERN stack want to learn. Java/Spring Boot?

9 Upvotes

I’m a B.Tech 2025 graduate with internship experience and projects in the MERN stack.

Recently I have been seeing more job openings for Java, Spring Boot and microservices, so I’m thinking of learning Core Java, Spring Boot, Microservices while continuing DSA.

Should I focus on improving my MERN/Next.js skills, or start moving towards Java?

What would you recommend if you were in my position?


r/learnjava 11d ago

Help! Where to practice Java?

10 Upvotes

I am following a course on YouTube (62-hour video of Telusko) but all I am doing is watching and not getting any chance to practice what I have learned, fyi till now I have watched till interfaces (basically core java is just a little left).

I want code using concepts I have learned like some small projects.

Edit: Thanks for your suggestions everyone, I got it all figured out. I am moving forward with MOOC via vscode


r/learnjava 12d ago

Using systolic array matrix multiplication in Console Java

1 Upvotes

Basically I know tidbits about systolic array concept.

Every nxn square matrix does the same things during every tick of the clock.

1) Receive

it takes a number from the left and a number from the top.

2) calculate

it multiplies those two numbers together and adds them to whatever total it already has inside the box

3) Pass

left number is passed to the processor on its right. and the top number is passed to the processor below it.


r/learnjava 12d ago

Java Beginners: What Is an Object Actually?

4 Upvotes

I'm a Java learner and I've been learning Java for the past few months, but I still don't truly understand what an object actually is.

I've watched several YouTube videos and used AI tools to understand it, but I keep getting the same explanation: "An object is nothing but data + code."

I understand the definition, but I still can't visualize or feel what an object actually is when I'm writing Java code.

Could someone explain it in a simple, practical way, preferably with a real world analogy and a small Java example?

I feel like I'm missing one fundamental concept here. Any explanation would be really helpful. Thanks!


r/learnjava 13d ago

In middle of my prep and idm where to go from here

3 Upvotes

I have read head first into Java , and Oracle Java complete reference 11th edition. This alone took an embarassing amount of time

I am completely new in the world of tech and this was a career switch . Im in online college and so I had alot of time on hand and started my java prep.

I have read these two books and now I'm aware of most topics, like nothing is new but i don't have the depth of understanding in majority of things.

I can't perform the certification questions at all .But can write short codes and do basic of basic questions .Any free resources which I can use as a jump for practice?

What is the way to truly learn this?

Is mala gupta se 8 a good resource to start question practice? Also is 1Zo-830 a really tough exam?

I made a typo in the tittle srry for that


r/learnjava 13d ago

Hit the wall in Part 5 section 4 (Java MOOC, University of Helsinki)

6 Upvotes

currently sitting in the library grinding on this have already spend over 6 hours(2 days) just on this section, the last time i hit a wall in this course was the christmas tree exercise where i spent 3 hours in a single question (maybe i am just stupid) . currently the last four programming exercises are left and like everytime i am going to do it and complete part 5


r/learnjava 13d ago

Fresher Looking for Someone to Teach Me Spring Security in 2 Days

0 Upvotes

Hi everyone,

I’m a fresher trying to get my first job as a Java/Spring Boot developer, and I’m currently learning Spring Security.

I’m looking for someone who is experienced with Spring Security and would be willing to teach me for 2 days, whenever you have some free time. I’m flexible with the timing.

I already have a basic understanding of Java and Spring Boot, but I want to properly understand Spring Security from the fundamentals and learn how it is actually used in real projects — authentication, authorization, JWT, roles/permissions, filters, etc.

I know 2 days is a short time, but even if you can help me understand the important concepts and guide me through a small practical project, it would mean a lot to me.

As a fresher, getting some guidance from someone experienced could really help me improve my skills and get my first job.

If you’re willing to help or mentor me, even for a few hours, please DM me. I’d genuinely appreciate it. 🙏

Thank you!


r/learnjava 13d ago

I want to learn java fully. Please suggest me some good sources

10 Upvotes

I'm a 2nd year engineering student and I want to learn Java fully as my main language for backend etc. Please suggest me some good sources to learn it from


r/learnjava 14d ago

How do I get into programming without overwhelming myself? Looking for beginner project ideas

6 Upvotes

Hey everyone,

I'm starting university soon to study Business Information Systems, and honestly, one of the things I was most worried about was programming.

I'm not someone who picks up programming concepts extremely quickly, so I was scared that I wouldn't be able to keep up at university.

I found out that we'll be working with Java, Python and SQL, so I decided to start preparing beforehand.

I started the University of Helsinki Java MOOC, and I'm currently around Part 4 of Java Programming I.

I really like the course because it's very interactive — you actually have to write the code and solve exercises yourself instead of just watching someone program.

However, I feel like I've reached a point where I want to do something outside the course.

The exercises tell me what problem I need to solve, but now I want to challenge myself by coming up with a small project completely on my own.

I want to see if I can take the concepts I've learned and figure out:

  • What should I build?
  • How should I structure it?
  • What classes/methods do I need?
  • What do I actually remember without being told what to do?

I've also probably gone a little overboard with Java🫠 I've learned a lot in the last week, and at this point all the Java concepts are starting to hurt my brain a little.

So I think instead of immediately learning more, I want to slow down and build something.

What would you recommend as a project for someone who is around Part 4 of Java Programming I?

I'm looking for something that's:

  • Actually possible at my current level
  • Small enough that I can finish it
  • Challenging enough that I have to think for myself
  • Not something where I can just follow a tutorial step-by-step

I'm also wondering what you would recommend after finishing Java Programming I and II.

Since I'll also need Python and SQL at university, I'd eventually like to learn those too. I'm specifically looking for free and interactive resources where I have to write the code myself.

If you were starting from where I am now, what would your learning path look like?

Any project ideas, resources, or general advice would be really appreciated! 🙏

I'd also love to hear from other beginners who went through the same “I know the basics, but now what do I actually build?” stage.


r/learnjava 14d ago

Need expert advice on java

13 Upvotes

Hey, I'm new to this community I'm a lone coder and fresh graduate know java and manageable springboot knowledge. I have lot of doubt about the reality of java developers, scope, carrier path to focus kind of doubts... If there's any experts with java and springboot knowledge I request them for a short one on one conversation if u are interested in helping me

Thank you..


r/learnjava 14d ago

Resource Selection

0 Upvotes

I got admission through wbjee in JGEC IT this year. I am starting my coding journey from the very first year. My preferred language is JAVA. So ##Which YouTube Channel would be best to build concepts from beginner level to advanced level##. I am thinking to learn JAVA first then I would follow Striver DSA sheet. Help ----​​​


r/learnjava 16d ago

i want to start java spring boot from 0

12 Upvotes

best resources to learn java from the very basics till java spring boot advanced any book or any yt video would help! please recommend one


r/learnjava 17d ago

i cant understand java mooc?

0 Upvotes

like been trying the first part about printing but i just keep re reading idk if im missing something but i feel like i dontfully get what they mean it seems like they expect me to know something about coding but i know 0

am i just stupid or what

like them explaining boilerplate im like cool i still understand fuck all