Where exactly will floating point math be performed in Java or C++?

Question

Java

There is a need to write a program that will count the matrix elements of which will be floating point numbers. I decided to implement the code in Java or C++. In this regard, the question arose where mathematical operations with floating point numbers would be more accurate. Thanks in advance.
PS If you know a PL that is more suitable for this purpose, then please share the information.

Answer 1

The accuracy will be the same, it does not depend on the language, but on the data type,
see float and double data types

Answer 2

It all depends on the processor. Intel calculates better on integer type, and AMD on floating point

Answer 3

On c ++, the functionality is more convenient there.

Answer 4

Implementation dependent

Answer 5

No difference. Precision and floating point are a bad combination.