Allocate memory to variable in c# [duplicate]

Question

I have the following lines of code:

SomeClass a;
SomeClass b = new SomeClass();
SomeClass c = new SomeClass()
{
    Foo="sss",
    Bar="dddd"
};

Whats the size (in memory) of the class instances a, b and c?

How much memory get assigned to each variable?

Answer 1

When you instantiate b and c, memory is automatically allocated, you don't have to handle it yourself. You can forget that part, that's the managed magic part, and garbage collector will take care of freeing the memory space for you, once these objects aren't needed anymore (no pointers to it...). Still, b and c take the same memory size, since it's the same type. a takes no space since it's not initialized yet.