I need example for that
Please i am waiting for reply 
A UI is an interface. A visible and/or mechanical method of interacting with the program.
UX is a school of design that includes UI but is not limited to it. UX (user experience) is about the entire flow of information between the user and the program and that can take many forms. UX also includes concepts such as:
Interaction patterns (how quickly and deeply can you get accustomed to the control methods? Do you develop muscle memory? Does mis-interactions occur under muscle memory? How frustrating is it? etc)
The meaningfulness of interaction methods and mediums (is the control method representative of the action it performs? Is it jarring? Is it intuitive?)
and so on…