Conceptually, what is the difference between early-binding and late-binding?

Question

What is early-biding? what is late-binding ? Examples of their usages.

Answer 1

early binding:  binding at complied time

late-binding: binding at runtime

in C#, Java, most of things are early bound unless we go through the reflection interface.
Polymorphism offers late binding too if some input at runtime trigger the resolving of some virtual methods.