Object-oriented programming

Object-oriented programming

1. class

   • defines methods and property / attribute fields
   • common behaviours and characteristics of objects

2. Object

   • objects based on a class are created using a constructor, implicit or explicit, and a reference to the object assigned to a reference variable of the class type

3. Instantiation

   • Creating a new object from a class definition
   • • Memory is allocated for the object’s fields
   • • Instantiation happens via a constructor ie a special method which is called when an object is created

4. Encapsulation

   • Combining a class with the procedures and functions that manipulate it to form a new data type - an object.