What is the difference between Strategy pattern and Visitor Pattern?

Question

I have trouble understanding these two design patterns.

Can you please give me contextual information or an example so I can get a clear idea and be able to map the dif

Answer 1

Seems like the second graph is Visitor Pattern to me...Since for strategy pattern, the class contains data structure tends to be only one, no subclass(Or the subclass stays same behavior of this part). The strategy is for different operations on the same structure.