What is class, object, abstraction, encapsulation in Java. Give real time example all of these.

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Accepted Answer

Class, object, abstraction, encapsulation are fundamental concepts in Java programming.

Class is a blueprint for creating objects that defines its properties and methods.
Object is an instance of a class that has its own state and behavior.
Abstraction is the process of hiding implementation details and showing only essential features.
Encapsulation is the mechanism of wrapping data and code together into a single unit.
Example: A class 'Car' can have properties like 'make', 'model', 'year' and methods like 'start', 'stop'. An object of 'Car' class can be 'Honda Civic 2021'. Abstraction can be seen in a TV remote where we don't know the internal working but only the essential buttons. Encapsulation can be seen in a capsule where medicine is wrapped inside a shell.

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