It's a technical/pedantic point, but a == b is an value-comparison of the identity "value" (in Java it's the memory reference). Or in other words, how do I kn

It's a technical/pedantic point, but a == b is an value-comparison of the identity "value" (in Java it's the memory reference). Or in other words, how do I know two references are equal (identity equal) without comparing the values of the references? Logical equality devolves to the same thing at the end.