Object Oriented Programming

The idea is to marry state and behavior

'''vb Dim myname as String Set myName = "Jeff"

MsgBox(UCase(myName)) '''

'''csharp var myName = "Jeff"; myName = myName.ToUpper(); '''

Things that you are most likely to do with a type are attached to that type

objects have:

State

variables that the object "owns" In .NET state is in class level variables we use the term Fields for these

Behavior

code that can be invoked that has something to do with the data (state) owned by that object. In .Net the behavior is methods. Constructors, Properites and Events.

Example

I have an object that represents a bank account

state

the bank account has a current balance