Our C# basics training slides, which we used in out recent training batch

1. Coding Horror
The scary show for Programmers
Based on True stories from the desk of
software programmers

2. Inheritance
Episode #1

3. About the dumbledores
Syed Mansoor Ahmed
(Project Manager)
- Proud Wiproite from last
10 Yrs
- Leads AppC Automation
team
syedmansoor.ahamed@wipro.co
m
Ankit Kashyap
(Analyst Programmer)
- Proud Wiproite from last
5.9 Yrs
- Works as developer;
take care of AppC tools
ankit.kashyap@wipro.com

4. Why We need it?

5. Open Close Principle
“software entities (classes, modules, functions,
etc.) should be open for extension, but closed for
modification”
-from Wikipedia

6. We all know Inheritance! Yay!!
Let’s check it!!!
Time for hands-on…
Car is a
vehicle! So
sweet!!

7. Back to geometry classes!!
Rectangle Square
Square is a
Rectangle

8. Awww! Cute ducks need software…

9. And here darkness ends!!
*Shameless copy from some site

10. Under the tree! Like Budhha
• Are constructors and destructors inherited ?
• How do you prevent a class from being inherited ?
• Can you mark method as sealed ?
• what do you mean by upcasting and downcasting ?

11. References…
• http://en.wikipedia.org/wiki/Inheritance_%28object-oriented_programming%29
• http://stackoverflow.com/questions/4428725/can-you-explain-liskov-
substitution-principle-with-a-good-c-sharp-example
• http://en.wikipedia.org/wiki/Liskov_substitution_principle