Do Interest Matter a lot in life to move forward?

 Polymorphism :      poly=> many       morphism =>forms

 Inheritance Process in which child class inherits the property of Parents class. Super Class/Base Class /Parent Class The class whose features are inherited. Sub Class/ Derived Class / Child Class The class which inherits other class.

  Abstraction Hiding => Implementation Showing => Features On ATM Screen , Users see only option , here user doesn't know internal process. Example : ATM Screen  Withdraw  Balance Check

  Encapsulation It is process of wrapping up data member & methods together into a single unit. Every Java Class is an example of encapsulation. Two ways of achieving Encapsulation:                  a) Declaring the instance variable : as private                b)  Provide public setter & getter method

  Asynchronous Communication (Non Blocking Call) 1. Time Delay 2. Work from home 3. Youtube video's comment section 4.When computation takes long time; Flipkart page open but processing takes time 5. Scalability of application ; It doesn't wait for notification from another user placing order 6. Avoid Cascading failure ; At times if with response server becomes overload ,it is made asynchronous inorder to let server work on it. 

  Synchronous Communication (Blocking Call) => Handshake 1. Real Time 2. 1 to 1 communication 3. In person / zoom meeting 4. Quick Reply to question