On Monday, 11 March 2024 at 08:49:35 UTC, Sergey wrote: > On Monday, 11 March 2024 at 08:16:13 UTC, Alex wrote: >> Hello, >> int main() >> { >> A a; >> a.run(); >> writeln("Hello, world!"); >> return 0; >> } >> ``` > > You need > ``` > A a = new A(); > ``` No. It was test how D handle uninitialized variables.