Your SlideShare is downloading. ×
0
Lec 33 -  inheritance
Lec 33 -  inheritance
Lec 33 -  inheritance
Lec 33 -  inheritance
Lec 33 -  inheritance
Lec 33 -  inheritance
Lec 33 -  inheritance
Lec 33 -  inheritance
Lec 33 -  inheritance
Lec 33 -  inheritance
Lec 33 -  inheritance
Lec 33 -  inheritance
Lec 33 -  inheritance
Lec 33 -  inheritance
Lec 33 -  inheritance
Upcoming SlideShare
Loading in...5
×

Thanks for flagging this SlideShare!

Oops! An error has occurred.

×
Saving this for later? Get the SlideShare app to save on your phone or tablet. Read anywhere, anytime – even offline.
Text the download link to your phone
Standard text messaging rates apply

Lec 33 - inheritance

59

Published on

0 Comments
0 Likes
Statistics
Notes
  • Be the first to comment

  • Be the first to like this

No Downloads
Views
Total Views
59
On Slideshare
0
From Embeds
0
Number of Embeds
0
Actions
Shares
0
Downloads
3
Comments
0
Likes
0
Embeds 0
No embeds

Report content
Flagged as inappropriate Flag as inappropriate
Flag as inappropriate

Select your reason for flagging this presentation as inappropriate.

Cancel
No notes for slide
  • Student Book
  • Student Book
  • Student Book
  • Student Book
  • Student Book
  • Student Book
  • Student Book
  • Student Book
  • Transcript

    • 1. Chapter: 09 Inheritance Lecture: 33 Date: 10.10.2012
    • 2. Class Hierarchies
    • 3. Public and Private Inheritanceclass employee //base class{ };class teacher : public employee //publicly-derived{ };class teacher : private employee //privately-derived{ };
    • 4. Public and Private Inheritance
    • 5. Levels of Inheritance Classes can be derived from classes that are themselves derived.
    • 6. Levels of Hierarchies
    • 7. Multiple Inheritance A class can be derived from more than one base class
    • 8. Multiple Inheritance
    • 9. Aggregation: Classes Within Classes Both inheritance and aggregation are class relationships. Inheritance is “kind of” relationship - association. Aggregation is “has a” relationship - association Def. Aggregation - Several things grouped together or considered as a whole.
    • 10. Aggregation: Classes Within Classes Both inheritance and aggregation are class relationships. Inheritance is “kind of” relationship - association. Aggregation is “has a” relationship - association Def. Aggregation - Several things grouped together or considered as a whole.
    • 11. Aggregation: Classes Within ClassesAggregation may occur when one object is an attribute of another.In other words, one class contains objects of another class.Example:class A { };class B { A objA; //object of class A is an attribute of class B };
    • 12. Aggregation: Classes Within Classes
    • 13. Aggregation: Classes Within Classes
    • 14. Composition: A Stronger Aggregation Composition is a stronger form of aggregation, having all its plus two more  The part may belong to only one whole  The lifetime of the part is the same as the lifetime of the whole While aggregation is a “has a” relationship, composition is a “consists of” relationship.
    • 15. Composition: A Stronger Aggregation Composition is a stronger form of aggregation, having all its plus two more  The part may belong to only one whole  The lifetime of the part is the same as the lifetime of the whole While aggregation is a “has a” relationship, composition is a “consists of” relationship.

    ×