11i Extending Oracle Applications: OA Framework

Before Learning OA Framework, one should be familar with JAVA Basic Knowledge.
3 Pillars of Java Programming

• Encapsulation
Encapsulation in Java is essentially a shield around the object. That shield protects the
object from other objects looking directly into its code.
• Inheritance
The ability to extend a class so the new class inherits the behavior and data of its parent while
adding its own differentiating characteristics. Inheritance is often described as an "is-a"
relationship.
• Polymorphism
In general terms, "polymorphism" refers to a component's ability to take on many forms.