It varies greatly. If you are in close fields, few months. If you have no clue what programming is it could become a year easily. It all depends on you and your effort really Answer from Pedantic_Phoenix on reddit.com
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Reddit
reddit.com › r/learnjava › how long would it take to "learn" java enough to be qualified for an entry level job?
r/learnjava on Reddit: How long would it take to "learn" java enough to be qualified for an entry level job?
February 13, 2024 -

I'm already attending college for a different field but I'd like another skill under my belt as well. Should be noted that I don't really have any prior programming knowledge.

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Reddit
reddit.com › r/androiddev › how long does it take for someone to learn java and then developn an app from a beginner?
r/androiddev on Reddit: How long does it take for someone to learn Java and then developn an app from a beginner?
October 11, 2022 -

Let's say a complete beginner started learning Java, is there perhaps a road map to see what they should learn to go on and develop apps?. I'm referring to simple apps first, such as a calculator, tic tac toe, etc. I'm also referring to the development of android apps. Thanks

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Reddit
reddit.com › r/learnprogramming › how long to learn java core?
r/learnprogramming on Reddit: How long to learn Java Core?
September 25, 2021 -

Just a quick one for any Programmers out there that could give me their two cents?

I’ve started a course in University which is essentially a conversion course, where they take people from other disciplines and teach them a qualification in software engineering. So essentially I have only started programming in the past three weeks.

The first three weeks of the course they crammed what I understand to be Java core into that time period. Basically two semesters worth of stuff in three weeks.

I am just wondering how long did it actually take some of you to get to grips with Java core? Comfortably? Maybe up to intermediate level?

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Reddit
reddit.com › r/learnjava › i know python, how long will i take to learn java?
r/learnjava on Reddit: I know python, how long will i take to learn java?
January 3, 2023 - If you want a concrete answer and considering you will study and solve couple of leetcode problems daily, it will take you 1 month. ... I started coding Java at work this year after learning python over a number of years.
Find elsewhere
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CodingNomads
codingnomads.com › blog › how-long-does-it-take-to-learn-java
How Long Does it Take to Learn Java?
That's why we highly recommend Java as the best programming language to learn for beginners. If you are starting from the beginning with no previous software engineering experience, it usually takes a steady effort of 1 to 3 months to learn ...
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Reddit
reddit.com › r/askprogramming › how long will i need to learn java, if i already know c/c++? or how difficult is it?
How long will I need to learn Java, if I already know C/C++? Or how difficult is it? : r/AskProgramming
February 27, 2025 - Assuming you are reasonably good at mapping concepts in your mind (lateral thinking) you should be able to reach a decent fluency in Java in a month or two. It's pretty easy if you already know c++. Java is c++ for people who don't like the think as hard. You will need a bit longer to learn ...
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Reddit
reddit.com › r/learnprogramming › how long to learn java
r/learnprogramming on Reddit: How long to learn Java
January 21, 2025 -

I’m doing a project for a class in school where we have to build a functioning website. My group of people is using Java as our language of choice. I don’t really know it at all. How long should it take me to learn it? Also with website development what are the most important aspects to learn for this specific project? Prof says it’s a really big deal and that this project has helped past students land jobs so I don’t want to fail. Also the best place to learn this? I’ve heard of FCA and TOP are the best places to learn for free.

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Reddit
reddit.com › r/learnprogramming › can i learn java in 45 days and be job ready?
r/learnprogramming on Reddit: Can I learn Java in 45 days and be job ready?
April 13, 2023 -

So my father's friend offered me a job ( Java based ) and I was a complete noob at that time, so he and my father both talked to me and gave me 3 months to learn Java. But me being me I was procrastinating it for 45 days thinking that I can learn it tomorrow and that tomorrow has never come. So if I learn Java 8 hours a day, can I be job ready? Sry for my bad english not a native speaker

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Reddit
reddit.com › r/learnprogramming › how long would it take me to learn java if i'm experienced with js?
how long would it take me to learn java if I'm experienced with JS? : r/learnprogramming
October 27, 2024 - I assume within a couple weeks ... much competition. ... About the same as if you didn't know JS. ... You can learn enough to use it competently within a week. Might take 6 months to become intimately familiar with the language though....
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Reddit
reddit.com › r/learnjava › how feasible is to learn introductory java in 2-3 weeks?
r/learnjava on Reddit: How feasible is to learn introductory java in 2-3 weeks?
May 12, 2021 -

So I took my university's intro java class about a year ago, didn't too well in it but still passed, and my major requires the second java course (Java 2) to be completed. Im considering either taking it in the fall so I can use the summer to prepare for it, or taking it during summer quarter and using the 2-3 weeks in between spring qtr and summer qtr to prepare.

Is it feasible to relearn all the material in Java 1 within 2-3 weeks at least decent enough to be somewhat prepared for Java II, to the point where the class can be passed? Like, is it possible to learn all the intro concepts like static methods, if/else, for loops, while loops, polymorphism/inheritance, basic arrays? Just to emphasize I did struggle toward the end of Java 1 lol.

Should I take Java 2 in the summer, or should I take it during the fall?

I took it at the University of Washington, so the courses I'm referring to are Cse 142 and 143, just in case anyone is familiar with them.

Thank You

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Reddit
reddit.com › r/learnjava › how long does it take to learn java?
r/learnjava on Reddit: How long does it take to learn Java?
March 10, 2016 -

Just wondering how long it will take to be fairly decent at Java. Assuming I have some, but limited programming experience. I start classes for Computer Science in 6 months and my Uni starts with Java. Was hoping to get ahead and Ive been teaching myself in my spare time. Will I have a decent grasp 6 months in?

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CodeGym
codegym.cc › java blog › learning java › to infinity and beyond: how long does it take to learn ja...
To infinity and beyond: how long does it take to learn Java?
December 22, 2023 - The learning of Java mission is definitely possible to complete in 3 to 12 months, however, there are many nuances that we will discuss in this article. Here we’ll try to answer the question “how to learn Java fast” as well.
Top answer
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56

10 weeks? Apparently you can do it in 24 hours!

http://www.amazon.com/Sams-Teach-Yourself-Programming-Hours/dp/0672328445

EDIT:

Okay, so only 1 person found my answer amusing, but not amusing enough to upvote. The real question is how good do you need to be in 10 weeks?

If you get yourself a good book (the one linked above has some good reviews on Amazon), then in 10 weeks you might be proficient enough to do something useful in Java, but it takes years to become expert. Any time spent between 10 weeks and several years will move you from beginner towards expert.

Oh and read Teach Yourself Programming in Ten Years.

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OK, based on some of the previous answers, I am expecting to get downvoted for this, but, I think you are delusional to think you can learn, on your own, how to program in Java in 10 weeks with no programming background. No person, with NO programming experience, other than some sort of prodigy, is going to learn to program in Java or almost any language in 10 weeks.

For clarity, copying and running hello world from a book does not make you a programmer. Hell, it will most likely take days just to get that working in some IDE.

Now, can you study and potentially pass some test? Maybe, but that depends on the depth and format of the test.

If I asked if I could become a doctor in 10 weeks, I would get laughed at for asking, so I am somewhat surprised at the answers that indicate that it is somewhat possible. I can stick a bandaid on my daughter now, but it hardly makes me a medical professional, it just means I managed their version of hello world.