Java 2004 — A Tour for the Midrange Developer


OOPS — Object-Oriented Programming Systems


OO Concepts

The Goal: More Reliable Software, Increased Programmer Productivity, Decreased Cost of Development and Maintenance. Overall -> More Bang for the Buck.

The Concept: Model the Real-World Problem Domain ( Data and Functionality ), Increase Flexibility, Extensibility, amd Reusability.

  • Encapsulation and Abstract Data Types

    • Classes and Objects, Attributes ( Data Members ) and Methods
    • Access — Public, Protected, and Private
    • Data Hiding and Loose Coupling

  • Inheritance and Programming By Difference

    • Abstract and Concrete Classes
    • Composition and Aggregation

  • Polymorphism and Late Binding

    • Overriding and Overloading