What is encapsulation in Java?
This question comes up a lot in Java developer interviews. Encapsulation is hiding the implementation with access modifiers, with getters and setters. This is done in order to close access for external use in those places where the developers see fit.
An accessible example from life is a car. We do not have direct access to the operation of the engine. For us, the job is to put the key in the ignition and start the engine. And what processes will already take place under the hood is not our business.
Even more than that, our intervention in this activity can lead to an unpredictable situation, because of which you can break the car and harm yourself. Exactly the same thing happens in programming.