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Inheritance is an implementation relationship that emphasizes similarities of the classes. In this video you will learn how to create class hierarchies using ABAP Objects.
After watching this video you will be able to:
1. Define inheritance relationships between classes
2. Redefine methods
3. Understand the basics of casting
Introduction to OO Concepts
- Object oriented concepts are the basic programming techniques common to all object-oriented languages.
- As far as these concepts are concerned, the only difference between ABAP Objects and other languages like Java or C++ is the syntax.
- You can only capitalize on the strengths of object-oriented programming if you use all of the concepts in the intended manner.
Inheritance & Casting
What is Inheritance?
- Different kinds of objects often have a certain amount in common with each other.
- Cars, trucks, and buses, for example, all share the characteristics of vehicles (current speed, current gear).
- Yet each also defines additional features that make them different:
- For example, trucks carry cargo and have more tires than a car
- Buses carry more passengers than trucks and cars.
Inheritance: is the concept that when a class is defined, any subclass that is defined can inherit the definitions of that class.
There is no multiple inheritance in ABAP Objects. However, you can use interfaces in ABAP Objects to simulate multiple inheritance.
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