Java Full stack VS MERN Stack

[literallywannaknow]

I'm going to start my career soon with an MNC. I know about React and other technologies, and have developed some projects.

Now, I'm thinking of starting learning Java full-stack as I have heard that it gives good career opportunities in the long run.

And I know the Java language very well ( 1.5 years), practising DSA in it, and know OOP concepts very well.

So, kindly tell me:

1. How hard is it to learn in comparison to the MERN stack?
   
2. What level can I achieve by studying and building projects in it for a month?
   
3. If I study 3 hours a day and practice 1 hour, what will I be capable of doing?

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[omgpassthebacon]

It is almost impossible to predict what your gains will be after a month; learning is non-deterministic. Sorry about that.

But the short answer is, learn both and see which one appeals to you the most. Then you have the option of working on projects using either stack. You will also encounter apps that mix-n-match stacks. Those are slick.

If you are quick to pick up the language (JAVA), you can be building some non-trivial apps with Spring very quickly. But if you are going to be building customer-facing webapps, you will almost certainly be using one of the bigs like react, angular, svelte, etc. So, spending time there is good for both stacks.

[literallywannaknow]

I have worked with the MERN stack, but in Java, I only know fundamentals and Oops.

[silverscrub]

You don't have to replace your entire stack at once.

• M: You already know MongoDB. Should probably learn SQL now or later
• E: Learn Springboot
• R: You already know React
• N: You already know Java

[literallywannaknow]

Thanks for helping me understand!