What is data abstraction? How is it different from data encapsulation?

Data abstraction is a mechanism of exposing only the interfaces and hiding the implementation details from the user. Encapsulation can merely be understood as wrapping up of data and methods in a capsule, which means just hiding properties and methods. Encapsulation is used for hiding the code and data in a single unit to protect the data from the outside the world. The class is the best example of encapsulation in C++. On the other hand, abstraction means showing only the necessary details to the intended user.