Why do we need struct? (C#)

Question

To use a struct, we need to instantiate the struct and use it just like a class. Then why don\'t we just create a class in the first place?

Answer 1

A struct is a value type (like Int32), whereas a class is a reference type. Structs get created on the stack rather than the heap. Also, when a struct is passed to a method, a copy of the struct is passed, but when a class instance is passed, a reference is passed.

If you need to create your own datatype, say, then a struct is often a better choice than a class as you can use it just like the built-in value types in the .NET framework. There some good struct examples you can read here.