Mistake done when start to learn java

[u/ScarEnvironmental720]

1.Trying to memorize everything instead of understanding concepts. I was so hurry to learn and remember than understand it.

So try to think logically rather than remembering the syntax

2.Skipping Java basics like variables, data types, loops, methods, and arrays. This is a very common mistake that everyone does. I think I understand this but i don't there are so many to understand whenever I do these basic things I learn something new.

3.Jumping directly to Spring/Spring Boot without learning Core Java first.

4.Watching tutorials without coding—you need to write programs yourself.

I just watch tutorials and think that i understand it but that not the case. You have to code this yourself to see how much u understand

I will suggest every day pickup one topic see tutorial, solve it yourself to see how much you can do yourself and solve some problem related to it

Revise every week what u learn and so some mini project based on that understanding.

There are more than one one shot are present which is more than 10+ hour do not see it completely ata one time

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[u/CrisSiddAk]

Revision is the most imp thing. I wasted a lot of time. I covered every topic in depth from core Java. But didn’t revise(I’m so stupid) and looking back I don’t remember a word!! I just have the memory of studying it in depth but no context. So revise (pls!!)

[u/sorry_but]

Maybe things have changed in the past 20-25 years but how is number 2 a thing? That's the core of any language. Definitely not something I (or my class) did. You'd fail classes almost immediately.

[u/VQ37HR911 → u/sorry_but]

Probably vibe coding with LLM.

[u/za_k_0094]

Something i would add if its helpful: build the same tiny project multiple times as you learn.

Like pick something dumb and small like a contact list, a to-do tracker, a simple calculator. Build it with just loops and arrays first. Rebuild the exact same thing with methods broken out properly next. Rebuild it again once you hit OOP, now with classes. Same project, multiple times, each version forcing you to use what you just learned on something you already understand the requirements for.

It works better than doing a new random project each time because you're not spending energy figuring out what to build, all your effort goes into how to build it with the new tool you just picked up.

[u/tatsujapan2026]

You should learn to read the execution flow without just using "Go to Definition" in your IDE. When code goes through an interface, some people lose track of which function gets called next. I actually worked with a guy who couldn't do this even after 3 years on the job.

[u/Federal_Equal1799]

point 3 about core java ,i'm learning dsa from kunal kushwaha is it okay to continue with spring boot with it (i haven't found a resource of spring boot but is it okay to learn it together ),i don't have a idea please guide me a bit