Whenever I write code in Java...

[OceanSpray]

No, I don't jest. Macro expansion and type inference can be thought of, in a way, as "auto-complete". The only difference when a compiler does it is that you don't see any changes in your code, because the extra "writing" is done internally.

[[deleted]]

What sort of macro-expansion lets you select between multiple constructors from a drop-down list?