Abstraction is the technique by which hiding the internal or
implementation details then showing only functionality to user called as abstraction
Ex:- user send sms then developer hide internal details and
user can look only the environment of
sms is typing or sending to any particular number.
Ex:- car have engine tires and many things driver can drive
only they will not know or understand hiding things they can only derive car
only….etc
There are two ways of abstraction
1:- abstract class
2:- abstract interface
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