Static and Dynamic resources? What is Nullable? what is ArrayList and Array difference?

Question

Accepted Answer

Static and dynamic resources, Nullable, ArrayList and Array differences

Static resources are defined at compile-time and cannot be changed at runtime, while dynamic resources can be changed at runtime
Nullable is a data type that can hold either a null reference or a value of the specified type
ArrayList is a non-generic collection that can hold objects of any type, while Array is a fixed-size collection that can hold elements of a specific type