Details Regarding Value Types and Reference Types

Intriguing Question	Value Type	Reference Type
Where is this type allocated?	Allocated on the stack	Allocated on the managed heap
How is a variable represented?	Value type variables are local copies	Reference type variables are pointing to the memory occupied by the allocated instance
What is the base type?	Must derive from System.ValueType.	Can derive from any other type (except System.Value Type), as long as that type is not “sealed”
Can this type function as a base to other types?	No. Value types are always sealed and cannot be inherited from.	Yes. If the type is not sealed, it may function as a base to other types
What is the default parameter passing behavior?	Variables are passed by value (i.e., a copy of the variable is passed into the called function).	For value types, the object is copied-by-value. For reference types, the reference is copied-by-value.
Can this type override System.Object.Finalize()?	No. Value types are never placed onto the heap and therefore do not need to be finalized.	Yes, indirectly
Can I define constructors for this type?	Yes, but the default constructor is reserved (i.e.,your custom constructors must all have arguments).	But of course!