Difference between Structural Design Pattern and Behavioral Design Pattern? [closed]

Question

I was reading on the design patterns basics and came across the two basic definition of Structural Patterns and Behavioral Pattern which is like:

Structural Design Patterns:Generally deal with relationships between entities, making it easier for these entities to work together.

Behavioral Design Patterns:Used in communications between entities and make it easier and more flexible for these entities to communicate.

reading it, I cannot differentiate between them, can someone guide me how they are different, by giving some simplest example?

Answer 1

Best way to explain would be to take two examples from two categories.

Composite from Structural patterns defines a tree like structure, so focuses on the relationship. One to many and has a type of relationships so that whole and part can be treated alike.

Observer pattern on the other hand from Behavioral design patterns focus on communication. How do we let the interested parties know any changes to the object. Sort of publisher to subscriber. Does not define a strict structure, but forces on implementing methods, i.e. channels of communications.

Hope it's useful.