Classes and Objects, Methods of Encapsulation (Public, Private,
Protected, Default), Benefits of Encapsulation, Data Abstraction
Techniques, Inheritance Mechanisms and Class Types (Base, Super,
Derived, Sub), Class Relationships (Association, Aggregation,
Composition), Polymorphism and Method Overloading/Overriding,
Static Methods, Final Keyword Usage, Abstract Classes and Methods,
Multiple Inheritance via Interfaces, Data Members of an Interface, Use
of Annotations, API Integration, and Fundamental Data Types
(Boolean, Byte) Exam Questions Verified and Provided with Complete
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Class
a blueprint for an object.
Object
an instance of a class with some characteristics and behaviors.
4 Methods of Encapsulation
-public
-private
-protected
-default
, Encapsulation
combining data and method members into a single unit.
3 Benefits of Encapsulation
-improved security
-enhanced security
-easy to maintain and implement
Data Abstraction
providing essential information to the outside and hiding background details or
implementation.
Inheritance
a mechanism which can derive a class from another class and shares attributes and methods.
4 types of classes in inheritance
-base
-super class
-derived class
-sub class