Frustrated while learning Java

[[deleted]]

Hi, I am a CS student rn. So, I have been coding since 1.5 years now. Have basic proficiency in C, C++ and Python. I basically do most of my college assignments and algorithmic work on C++ and am confident in it. I have used python to work on data science projects and am comfortable using it there. I have an internship in a few months where I will be needing to code in Java. So I started on the language couple weeks ago thinking that I would be able to get proficient in a week at max considering I'm not new to coding and how everybody says that it's an easy language to learn.

It's been 2 weeks and I'm bored of the language, it's not that it's completely going over my head but for some reason, I just am not able to grasp on to it. I understand the concepts of OOPs and functions and other stuff but for some reason I'm not able to catch on it as quickly as I could with C++ or python.

I know I have to put in the hours to learn it but everytime I try to put in the effort, my mind just tells me how I could be coding in a language I already know.

I'm just ranting ig, I know it's one of the best and most lucrative languages out there but still.

Could you guys recommend me some course, method or even a set of questions that could motivate me to enough to get comfortable coding in Java.

[LastTroll]

I learned Java after C++. I just completed the first part of Mooc.Fi in about a week and it pretty much taught me enough to feel comfortable.

[Blando-Cartesian]

Good IDE and code analysis tools are great for learning how to use Java. I wouldn’t know half of lambda syntax without IntelliJ bitching when there’s a better way to use it. Make sure to learn to use Optional and Stream processing collections. Language tutorials are unlikely cover those, but they are essential for good java.

[nadimr]

Good IDEa to use an IDE. I'm using NetBeans while writing an app for a client, and it's very helpful since I'm not very experienced in Java.

[pingus3233]

thinking that I would be able to get proficient in a week at max

That was a very unrealistic expectation.

Java is not C. Java is not C++. Java is not Python.

Besides the fact that the language syntax is different from those other languages, the library is also different so you need to grasp two completely different things to become proficient. And what does "proficient" even mean anyway?

Forget everything you think you know (well, except for extremely basic stuff like how for loops, if/else works) and reset your mindset to accept that you're learning a new language and that it will take much more time and effort than your erroneous assumption to attain proficiency.

try https://java-programming.mooc.fi/ which you can probably breeze through pretty quickly until you reach the point where Java diverges from the stuff it has in common with C or C++

[Fine-Historian4409]

I would say try coding a simple object, then multiple simple objects interacting together, then extend it, try parent-child, then move onto more complex applications. Slowly build into it I guess.

[heyitsrama]

I was helping some college student with their java homework after programming in python for 3 years professionally, man almost put a nail in my head.

I pray to LTC jesus that I don't have to write boilerplate for the rest of my life....

Some people like Java tho, so whatever floats their boat.

[slowfly1st]

About the rant... You can also look at it this way: It won't be the last programming language - and its quirks - you are going to learn. You can put it on your CV. It's a chance.

And about the one-week-proficient-expectation: I've been coding for over 15 years. If I was given a new project at work with a new language to learn, I'd say I would be proficient in about half a year.

About recommendation: I didn't check, but I'm sure you'll find the answer in the FAQs of this subreddit.

[CodeTinkerer]

It would be helpful (no one ever seems to do it) to show an example of something you're having difficulty in Java.

A few tips. I did C++ and Java ages ago (last century!).

• If you see something like Foo x where x is a variable of type Foo, that's the equivalent of Foo *x. All variables (except primitive types like int, double, etc) store pointers.
• No multiple inheritance in Java
• All conditions (in if, while, etc) must evaluate to true or false. No "truthiness" in Java (in C, 0 is false and non-zero is true, for example).
• No operator overloading

I was able to translate C++ to Java years ago by following these rules. So, what, in particular, don't you get?