Tell me about AWS? What is Pointer? What is Constructor & its types? Tell me about polymorphism and abstraction or OOPs Concept?

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Answering questions related to AWS, pointers, constructors, polymorphism, and abstraction in OOPs.

AWS is a cloud computing platform that provides various services like storage, computing, and databases.
Pointer is a variable that stores the memory address of another variable.
Constructor is a special method that is used to initialize objects in a class.
There are two types of constructors: default constructor and parameterized constructor.
Polymorphism is the ability of an object to take on many forms. It can be achieved through method overloading and method overriding.
Abstraction is the process of hiding the implementation details and showing only the necessary information to the user.

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