Hi, I'm not 100% sure if this belongs here, if it doesn't I can delete this post and ask on a different sub.

So, I just got hired as a Java Backend Developer for a big company and I'm not sure what I should be learning before I start (my first day will be April 4). I know Core Java, it's syntax, Collections, Streams. I also know how to build very basic REST APIs with Java Spring, relational and non-relational databases, a bit about Design Patterns (like Singleton, Strategy, Observer).

Is there something that I should learn before my first day there? I will be getting a 2 month training before starting on real projects, but I still want to know as much as possible before starting.

The company is a big E-Commerce and Fintech company that's probably the biggest tech company in Latin America. I don't know yet to which project I will be joining, I will know after finishing the 2 months training.

First off, I'm admittedly a Java fanboy, although I did some little programming in PhP, Javascript, and Python, and looked at a bunch of others, I really cannot see languages the way I do Java. From the syntax, to the libraries, I love every little thing about this language, that I tell my friends things like: "Programmers want to write programs, I want to write Java programs" and "If it can't be written in Java, it's probably not worth writing". My ears are deaf to all the debate about: "oh you have to be flexible, and know x and y".
But then ever since I started reading, I've been hit with Oracle's reputation.

And correct me if I'm wrong, but here's what I think Java's (slight) fall from grace, played out:

1. Java reigned supreme in the browser, esp, after the dust of the dot com bubble settled.

2. Someone found a vulnerability (or two?) in applets (around 2009?) that affected the ton of sites that ran Java.

3. Google, which had been pushing hard to become from a search engine, a browser, disabled Java by default in Chrome...and you know, given the "power of default", programmers pivoted to Javascript, because it was disruptive to have average people download an updated Java + enable it.

4. Oracle, being as litigious as ever, wanted to get back at Google, by removing some internal code Android required from Java, making support for Java 9 not possible (although Java 9+ can be used, with some features not being available).

5. Oracle then sued Google claiming they should've paid them for using Java in Android.

6. Google won the case, and pushed Kotlin and Flutter as the primary means of writing Android programs.

Now, resources; books, tutorials, never use Java for Android programming, and other languages developed frameworks, servers, etc. that ate (a chunk of) Java's lunch.

After most major/seminal books in the field used to use Java for example codes, newer books and editions of said books switched to different languages. (e.g. Martin Fowler's Refactoring comes to mind: Java -> Javascript).

Between 2000, and 2010, authors of major libraries:

- Kent Beck, author of xUnit (originally in SmallTalk).
- Doug Cutting, author of Lucene, which gave birth to elastic search, and inspired other IR libraries...plus pretty much all of Apache Software, were automatically either written in or translated to Java.

Meanwhile now, while efforts of developers of the JDK, and the countless major Java frameworks, can't be dismissed by any means, the community just sounds ...quiet. Even here, Java-related sub-reddits are pretty inactive compared to dotnet/python subreddits.

So, senior devs of the early 2000s, curious to know what your thoughts on Java's journey so far, and possibly its future?

Hello r/learnjava!

I am new to the world of programming and I have been learning Java in school as part of my CS degree. I like learning Java and I would like to expand my knowledge into something marketable for a career. what else do I need to learn to be successful?

Hey!

I graduated with a CS degree a year back and I have worked for over a year in C# and .NET.

I have learned both C# and Java in college.

I want to become proficient in particular language or area. I was initially leaning towards C# itself, since I have a year of experience in it, I thought I could learn some of the popular frameworks like ASP .NET and database related components like LINQ.

However i have read that Java has a broader job market compared to C# and since it has been OS agnostic and has been here longer than C#, there are more opportunities for it.

A few questions:

1. Purely in terms of securing a job, would it be more beneficial to start learning Java and it’s associated frameworks instead of C#?

2. What are some popular frameworks I can learn? I have heard about spring, spring boot, but if anyone can give a detailed explanation about the framework, database related components, the order in which I can learn them, and any suggested course / material, it would be really helpful.

PS. I know it isn’t good to tie myself to a single language but this is just for the beginning stage so I can secure jobs more easily.

Thanks so much!

I been a dev for about 10 years and I've mostly worked with Javascript (react, node) and ruby (ruby on rails.)

My degree was the "java track" so 90% of the coding was in Java and I had to build applications using Spring Boot. So I put Java in my profile and resume.

I been applying for jobs and every single one was interested in me knowing Java. They wanted a Java dev. Apparently since I already haven't used Java in production.

So... what's the deal? I'm already currently learning other skills to skill up like AWS, but it sounds like Java devs are in such need, it might be worth it to spend 3-6 months to sharpen those skills, learn the specific tools in the ecosystem, etc...

So are Java devs in high demand right now?

I've been learning Kotlin recently and have taken an interest in the JVM ecosystem.

My background is a Full-Stack Web Developer focused mainly on React, Node.js, Express, and MongoDB/PostreSQL.

If I were to move to Java, what kind of applications would I be building with it?

How is a Java job different from what I'm currently doing?

Is it worth learning?

I've heard its VERY verbose, but I've also heard recently that there's been some good changes to it? Would love to see any articles or videos talking about these changes that would demonstrate previous code to the new code.

Any tips or insights on what your companies are cresting with Java or what your Java job is like would be highly appreciated.

Thanks in advance.

I'm interested in java development, and have been looking at various jobs/careers - esp. android development (but I'm open to learning more to keep myself from being pidgeonholed). How's life and work on the daily for you? Where are you headed in 5 years? Any advice to give to a student to have a great career upon graduation? Anything we should learn extensively?

Obviously I need to know the basics like control-flow. I would also need to know Collections, input/output, classes, polymorphism, inheritance, records, abstract class, interfaces and so forth. What else do I need more than that? java.net package? JavaFX? Springboot? Serverlets? A comprehensive list would be nice.

Hi everyone,

I recently got a bachelor in The Netherlands for my study 'Business, IT & Management'.

I'm looking for a job for a few months now but it is very hard. Ideally I would like to have a job in 'functional management' or 'application manager'. Basically I would like to work between the layers of the 'business' and 'customers'. Basically finding requirements from the customers and translate them so the 'technical' folks can start making those things a reality. I have done 4 internships of 840 hours in these kind of jobs but it turns out I am still not experience enough and nobody will hire me for that. Got rejected around 8 times already.

There's a serious shortage of developers in the Netherlands. I got offered traineeships for Java/.NET probably 50 times but I refused each one of them because I don't really see myself coding behind a desk 40 hours/week.

I'm running out of time and am considering to accept a traineeship to become a Java developer. They will make me do a study to learn the Java basics in 2 months and will then become a 'Junior Java developer'. I will work next to a more experienced developer who will help me out when I need it.

Developing isn't really my passion though, but maybe I am underestimating the job? Is it fun? How would a normal day look like?

I have a pretty good knowledge of php, sql, css, html, xml etc. and a basic knowledge of OOP.

Do you think I should take a traineeship to become a developer? I won't mind doing it for a couple of years but at the end I'd still like to end up doing a projectmanagement/consultancy job. I'm scared that if I take this job I'll end up being a developer forever.

Hello everyone,

As the title says, I'm learning Java to become a junior Java developer in the next 6-8 months.

My game plan is to finish codegym.cc which provides about 300- 500 hours of practical coding. Give I plan to finish this in 2 months (fortunate to have a job that allows me to spend the majority of 8 hour shifts working on what I want and time after work as well as before.) Averaging around 6 hours a day studying with breaks.

My plan afterwards is as followed:

• Harvard CS50

• Spring, Hibernate, and possibly Javascript + Angular

• Read up on SOLID, Design Patterns, and read Clean Code + Effective Java

• Work on a few personal projects (still brainstorming ideas but it's hard to come up with much)

I currently have a Bachelor in Information Technology and work Helpdesk. I plan to move to San Diego from a rural area in Florida in hopes of finding a position.

Is 6-8 months actually possible to become a junior java developer? If so, is my plan enough to make me competent enough to explain to a hiring manager that I know what I'm doing?

I appreciate any feedback.

I am starting a new job working at a bank, and they use Java/Maven/Springboot for everything.

I am knee-deep in research and beginner courses on youtube/MOOC.fi.

I just want to know if I put my all into learning everything I can, should I be able to guarantee myself a full (35 years) career using these technologies?

I have only ever worked with C, Python, PHP, JS, Typescript, React and React Native so far in a professional setting.

I am willing to put in the work and go deep into learning everything I can, but at this point I don't know if I have the willingness to keep doing these deep-dives in so many different technologies.

Can Java be the last stop for my learning journey? I am tired of feeling like a jack of all trades, master of none.

Any key tips will be appreciated! Also, if you are going to say practice please expand on it, thanks!

I've had some experience with Python by learning from Codecademy and my older brother who took computer science at ISU. In my opinion, Codecademy doesn't teach very realistically. Like, "Hey, here's what you could do. Now replicate this." I had a hard time learning from it. After playing Minecraft and seeing some Java development and the power and versatility of Java, I'd like to start delving into what Java has to offer. To save me time, I want to know, what's the best place to go to to learn Java programming efficiently and thoroughly.
BTW I'm a high-schooler, so "Go to college" is not an option at the moment. xD

I have been using vscode for python, but now in school they are going to teach us POO in java, so i woder if a can keep using vscode or is a better option like netbeans or eclipse.

Seriously. I don't mean to sound critical, but I am curious as to why it's so popular. In my experience--which I admit is limited--Java apps seem to need a special runtime environment, feel clunky and beefy, have UIs that don't seem to integrate well with the OS (I'm thinking of Linux apps written in Java), and seem to use lots of system resources. Plus, the syntax doesn't seem all that elegant compared to Python or Ruby. I can write a Python script in a minute using a text editor, but with Java it seems I'd have to fire up Eclipse or some other bloated IDE. In python, I can run a program easily in the commandline, but it looks like for Java I'd have to compile it first.

Could someone explain to me why Java is so popular? Honest question here.

I really want to learn how to code using Java, I'm taking the beginning course of Java next year, in School, but I want to try to start using it outside of school so I'll be ahead of the game once school starts back up, so can any of you send me a link to download it and some tips to starting it?

Hello,

I started learning Java five months ago. I joined Udemy courses and tried to learn from YouTube and other Java Android courses, but I'm lost. I don't understand anything, and I don't know what to do. Do you have any advice?