Variables inside Java classes

Question

How am I able to "assign" a value to a final variable here? In C++, I only can "initialize" it.

Or does Java has the count of the number of times a final variable is assigned and not allow more than one assignment? That's not a very efficient way though...
https://code.sololearn.com/cw5Y4KHi4DV0/?ref=app

Answer 1

Rishi,
I don't see that much of a difference. In C++, const members can be initialized where and as they are defined, or in a class constructor, through member initializer.

And here it's pretty much the same, cause we are only assigning value to the uninitialized const (final in Java) member in the constructor. I guess there's no way it can be done in other methods.

Answer 2

Rishi

Just do this in your code and see the difference

private final int a = 4;

Initially final variable doens't have any value so you are able to assign new value but in the case when you have declared variable with value, it will not allow to assign you new value.

Answer 3

A͢J - S͟o͟l͟o͟H͟e͟l͟p͟e͟r͟
Ipang
Thank you, now I understand this =)

Answer 4

be careful with final variables those are final u cant change them anymore

Answer 5

magic real yeah, I was aware of that. I was just playing around with that to understand it well =)