Abstraction is a most important OOPs concept which is used to show the functionality hide complexity , abstraction implements through abstract class and interface and if any classs has any abstract method then it can not be instantiated . Encapsulation It is the process of hiding data like wrapping code and data together into a single unit for examole java class. We can create a fully encapuslation by making all the data members of the class private . Solution Abstraction is a most important OOPs concept which is used to show the functionality hide complexity , abstraction implements through abstract class and interface and if any classs has any abstract method then it can not be instantiated . Encapsulation It is the process of hiding data like wrapping code and data together into a single unit for examole java class. We can create a fully encapuslation by making all the data members of the class private ..