Objects & Classes

Objects & Classes

1. Object Oriented Programming (OOP)- models applications on real world objects

   • Objects
     • attributes (fields)
     • actions (methods)
     • pascal naming- capitalize each initial
     • camel naming- capitalize each except the initial
   • Classes
     • class name
     • fields
     • methods
   • UML class diagram
     • class name
     • list of fields
       • variables
     • list of methods
       • define actions
     • The Method Main
       • provides the entry point to an application
       • Constructors
         • used to construct an object
           • object a.k.a an instance
         • every class must have at least one
         • The Null Keyword
           • when a reference variable does not refer to an object
             • null value