What is the difference between Factory and Strategy patterns?

Question

Can any one explain the difference between factory and strategy patterns?

For me both are looking same other than an extra factory class (which create an object of

Answer 1

Strategy and Factory are different purposes. In strategy you have the approach defined, using this pattern you can interchange the behavior (algorithms). Coming to Factory there are lot of variations around. But the original pattern from GO4 states factory leaves creation of object to child class. Here with the factory you are replacing complete instance not the behavior you are interested in. By this you will be replacing complete system not the algorithm.