Do parentheses after the type name in the new operator affect initialization?

Hi everyone! I started learning C++ and encountered something unclear. When we allocate memory via `new`, I often see two writing variants: ```cpp int* p1 = new int; // without parentheses int* p2 = new int(); // with parentheses ``` Or for classes: ```cpp MyClass* obj1 = new MyClass; MyClass* obj2 = new MyClass(); ``` It seems there's no difference, but I heard somewhere that for built-in types (int, double, etc.) parentheses can affect initialization. I checked with a simple example: ```cpp #include int main() { int* a = new int; int* b = new int(); std::cout << *a << " " << *b; // Sometimes prints garbage and 0 delete a; delete b; return 0; } ``` Indeed, `*a` shows a strange value, while `*b` is always zero. Why is that? And for classes, is there any difference?