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Abap Objects doubts.

Hi Experts.

Plz give me some details for the following questions.

1. what is abstract class.

2. give me some example program using inheritance.

3. Some sample programs using events.

4. Narrow casting & wide casting.. And describe the use of it.

5. How to declare internal table in ABAP OOPS.

6. What is the use of table type.?

7. What is instance.?

8. Explain friend class.

Thank in advance.

Points will be given for the answers.

regards,

J.Joe

Former Member

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