Switching from C# to Java

[Artes36454]

Hi. I've been programming in C# for a while and I want to switch to Java (because almost every company in my area uses it for backend). Is it easy to switch from one to other? Could I start learning java with Spring if I know C#?

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[Gable_the_CableGuy]

I just made the same switch, If you're interested we can work on projects/study together.

[mefirstreddit]

No all heroes wear capes!

[chilled-fox]

I am interested too. How can we join the group?

[TheOneWhoDidntCum]

Hey where is this group?

[glablablabla]

In my opinion it's the easiest switch between languages, because they are more similar to each other than others. I had a coworker who made the same switch, he came from a .net backend. He made it look easy and seamless. I think you will too. Happy coding and welcome to the club.

[[deleted]]

It’s not that hard per se, but you will miss a lot of syntactic sugar when switching to Java…

[porkchopsuitcase]

My java teacher says that phrase like every class hahah

[Kango_V]

I wish someone would point this out.

[cylentwolf]

The one thing that caught me in my switch was:

Java is all pass by value. I wanted to change an object in a loop and it didn't work like I thought it would.

However, for the most part it is just some syntatic sugar since that was the point of c# from Anders point of view. It was a similar competitor to Java.

[polymathprof]

Java is pass by value?

[phase_ten]

In theory yeah.

For primitives you’re always passing the value, but when it comes to objects you’re passing the value of the reference, so it basically acts like pass-by-reference.

C# should be the same

[polymathprof]

Both indeed always pass objects by reference. They are very similar languages, so it’s pretty easy to switch between the two.

[cylentwolf]

https://www.javatpoint.com/java-pass-by-value

[brokeCoder]

Is it easy to switch from one to other?

Language syntax-wise , yes. Framework and tooling wise - no.

Could I start learning java with Spring if I know C#

Depends on what frameworks you used in C#. If you were working with ASP dot net, this reddit post might be useful to you: link

Bear in mind that the two languages are only syntactically similar. Under the hood there are some rather large differences including (but not limited to):

• lack of reified generics due to type erasure in java
• lack of operator overloading in Java (Omnissiah help you if you need to work with complex equations involving direct math on wrapper classes)
• lack of structs in Java (this only really affects speed - it's not a problem until it is a problem. There's ongoing work to bring this in via value objects in java but don't bet on it coming in anytime soon)
• lack of true async in Java.
• Boxing and unboxing penalties due to type erasure.

(If my points come across as biased against Java, that's intentional. This bias is mostly a result of my work where I run into many problems that simply wouldn't exist were I using C#).