What is the difference between static and dynamic binding?

Question

Binding times can be classified between two types: static and dynamic. What is the difference between static and dynamic binding?

Could you give a quick example of each

Answer 1

In the most general terms, static binding means that references are resolved at compile time.

Animal a = new Animal();
a.Roar(); // The compiler can resolve this method call statically.

Dynamic binding means that references are resolved at run time.

public void MakeSomeNoise(object a) {
   // Things happen...
   ((Animal) a).Roar(); // You won't know if this works until runtime!
}