means in language of coding we r not using abstraction this will be used only for making ideas what r the necessary things would be for application it is ok or anything else ..

Abstraction is the feature of OOPS in which we show the essential features of an object and suppress the unnecessary details.

E.g.

Consider a bank application in which there is a Customer Class.

Now what are the necessary details to have.

Name,address,date of birth.

We don't need how many houses he owns and what vehicles he owns so these are unnecessary details for customer object so we suppress these details in order to come up clearly with essential details i.e. Name,Address, date of birth.