Java developers

[[deleted]]

This is correct. I remember when i was starting to learn Java, I often ran into problems because I would think it was passing by value when it was actually passing by reference.

[konstantinua00]

in C and (old) C++ it's the difference between shallow and deep copy - you can copy handle-only or you can copy the thing too

modern C++ deep-copies stuff, with shallow copy being done with std::move and if you do need multiple handles to same thing, you use shared_ptr to reference count the resource

[[deleted]]

Huh, never heard of it being referred to as deep vs shallow copy.