OOP

OOP

1. Objects

   • Attributes
     • Fields
   • Actions Performed
     • Verbs
     • Methods
       • Functions
   • Can contain other objects

2. Classes

   • Template
   • Class Name
   • Fields
     • Variables
       • Primitives
       • Reference to Objects
     • Refer to another object
   • Methods
     • Actions an object can do
     • Declaration part
       • Signature of method
     • Body
     • Return type
       • Void
       • An object
       • Primitive
     • Main
       • Entry point of application
       • Allows class containing it to be invoked
   • Are the fundamental building blocks
   • Constructors
     • Used to construct an object
     • Has no return value
     • No argument constructor
   • Object
     • Instance
     • Construct
       • new Keyword
     • Null
       • No value