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Student's Message: Msg No. 548010
Subject: Query
Respected Sir
What is model??
How many types of model exist ?
Thanks
Post Your Comments
Other Students' Comments: 0

Instructor's Reply:
Model if used to identify steps for developing something e.g. as a map, blueprints for building roads and bridges etc. 
Which model types you want to know, is that object model types of some thing else, please clarify your question.
 [MC110400449]

Posted On: 
October 18, 2012 09:57 AM

Replied On:
October 18, 2012 11:46 AM

Student's Message: Msg No. 548008
Subject: Query
Respected Sir 
Plz explain information hiding ...........
Thanks
Post Your Comments
Other Students' Comments: 0

Instructor's Reply:
Please read handouts as information hiding is already discussed in handout with enough details.
 [MC110202038]

Posted On: 
October 17, 2012 08:58 PM

Replied On:
October 18, 2012 11:58 AM

Student's Message: Msg No. 547825
Subject: OOP's importance
Is OOP a gateway towards the approach of programming?
Post Your Comments
Other Students' Comments: 0

Instructor's Reply:
No, we can’t say this exactly as there are many other programming paradigms as well which doest not involves objects. However OOP is the major paradigm used for objects in many languages. For further details please read following links: 
http://en.wikipedia.org/wiki/Programming_paradigm
http://en.wikipedia.org/wiki/Programming_paradigm
 [BC110400538]

Posted On: 
October 17, 2012 08:34 PM

Replied On:
October 18, 2012 12:04 PM

Student's Message: Msg No. 547810
Subject: model
Respected sir,
plz inform me the deference about model and analyses in object oriented program. and why we do a model for object?
Post Your Comments
Other Students' Comments: 0

Instructor's Reply:
Model if used to identify steps for developing something e.g. as a map, blueprints for building roads and bridges etc, while object oriented analysis is process of analyzing a task also known as a problem domain, to develop a conceptual model that can then be used to complete the task. Please go through following link for further details:
http://en.wikipedia.org/wiki/Object-oriented_analysis_and_design
 [MC120204018]

Posted On: 
October 17, 2012 06:12 PM

Replied On:
October 18, 2012 12:11 PM

Student's Message: Msg No. 547702
Subject: mc120204018
respected sir,
what is real life applications of oop????
Post Your Comments
Other Students' Comments: 0

Instructor's Reply:
OOP is used in many languages. Please read following links:
http://en.wikipedia.org/wiki/Object-oriented_programming
 [MC120204018]

Posted On: 
October 17, 2012 06:08 PM

Replied On:
October 18, 2012 11:44 AM

Student's Message: Msg No. 547698
Subject: mc120204018
what is difference between Encapsulation and Abstraction ?
regards,
tahreem yousaf
talagang
Post Your Comments
Other Students' Comments: 0

Instructor's Reply:
In encapsulation all the characteristics of an object is present in the object itself while in abstraction we capture only those details which are relevant to object current prospective. Read handout as their difference is given in handout with enough details.
 [MC120204018]

Posted On: 
October 17, 2012 06:07 PM

Replied On:
October 18, 2012 11:39 AM

Student's Message: Msg No. 547697
Subject: lecture 2
respected sir,
pl z explain the following sentence.
"if we change implementation of function it doesn't affect the object oriented model."
how it will be possible??
pl z clarify my concept thanks.
Post Your Comments
Other Students' Comments: 0

Instructor's Reply:
As in OOP paradigm we go with separation of interface and implementation, when make changes in the implementation, our interface remain same i.e. there will be no changes on the interface of object. And object model deals with the interface, so object model remain same. This concept will be further clarified in details in upcoming lectures.
 [BC110402490]

Posted On: 
October 17, 2012 03:32 PM

Replied On:
October 18, 2012 11:33 AM

Student's Message: Msg No. 547611
Subject: Lectures
Assalamuakum Sir

please give me complete address so i can view lecture. first i will go on ocw.vu.edu.pk than in which tab i click for lectures viewing

Post Your Comments
Other Students' Comments: 0

Instructor's Reply:
 [MC110401426]

Posted On: 
October 17, 2012 09:36 AM

Replied On:
October 17, 2012 11:53 AM

Student's Message: Msg No. 547251
Subject: grading schema
Asskan-0-alikum!
Respected sir!
kindly tell me grading schema of this course
regards,
Post Your Comments
Other Students' Comments: 0

Instructor's Reply:
Grading scheme can be found in VULMS under your course CS304 now. 
 [MC100403379]

Posted On: 
October 17, 2012 12:20 AM

Replied On:
October 17, 2012 10:01 AM

Student's Message: Msg No. 547162
Subject: Asalm-O-Alikum
Dear Sir,
I gone through some lectures and found that though the subject is interesting and let me say your way of teaching in lectures is really appreciable but making a object oriented model on my own seems bit difficult i think i need more practice.It Does not relate to this lecture but i had an issue so i shared. 
 
Post Your Comments
Other Students' Comments: 0

Instructor's Reply:
Lots of practice is the key to learn better.

Posted On: 
October 16, 2012 11:02 PM

Replied On:
October 17, 2012 10:05 AM
Student's Message: Msg No. 547104
Subject: lec 1
Asalamoalaikum sir,
object is anything which is tengible and nontengible. in object oriented programing we make related information about any object??
Post Your Comments
Other Students' Comments: 0

Instructor's Reply:
Tangible: Something that can be physically touched or felt. For example something real and substantial. 

Intangible: Something that cannot be touched. If something is intangible it does not mean it's not real. It just means it has no physical existence like emotions.
 [MC110201184]

Posted On: 
October 16, 2012 07:59 PM

Replied On:
October 17, 2012 10:07 AM
Student's Message: Msg No. 546931
Subject: C sharp:
respected sir:
from when we will start studying c sharp language?
how c sharp is better then c++?
regards 
basit ali.
Post Your Comments
Other Students' Comments: 0

Instructor's Reply:
In this course you will study C++ using Dev C and in upcoming lectures it will start.
 [MC120204018]

Posted On: 
October 16, 2012 06:50 PM

Replied On:
October 17, 2012 10:11 AM
Student's Message: Msg No. 546872
Subject: mc120204018
respected sir,
why model is required ?
Post Your Comments
Other Students' Comments: 0

Instructor's Reply:
To identify steps for developing something e.g as a map, blueprints for building roads and bridges etc.

We need models to understand an aspect of reality.

 [MC120204018]

Posted On: 
October 16, 2012 06:48 PM

Replied On:
October 17, 2012 10:16 AM
Student's Message: Msg No. 546868
Subject: mc120204018
RESPCTED SIR,
WHY OOP IS BETTER THAN PROCEDURAL PROGRAMMING?
Post Your Comments

Instructor's Reply:

Among the major reasons following are some:

  • Information hiding and encapsulation
  • Simplicity
  • Re-use
  • Maintainability and empathy
 [MC110400860]

Posted On: 
October 16, 2012 04:55 PM

Replied On:
October 17, 2012 10:19 AM
Student's Message: Msg No. 546774
Subject: OOP and OO Model
Respected Sir,

How can differentiate b/w OOP and OO Model?

Regards,
Farhan Ahmed
Post Your Comments

Instructor's Reply:

We make Object Oriented models showing several interacting objects to understand a system given to us for implementation.

During coding in object oriented programming approach we have objects with their attributes and behaviors that are hidden from other classes, so we can say that object oriented programming follows the principle of information hiding.

 [BC100200054]

Posted On: 
October 16, 2012 02:46 PM

Replied On:
October 16, 2012 03:46 PM
Student's Message: Msg No. 546663
Subject: strcpy
Respected Sir;
Is strcpy(something) a reserved word for C++?
Also give me some guidelines of perfect programming. 
Thanks and regards.
Post Your Comments
Other Students' Comments: 0

Instructor's Reply:
strcpy is a reserved word for copying the C string pointed by source into the array pointed by destination, including the terminating null character (and stopping at that point).
Try practicing as much as possible where ever you can find related to your subject.



Views: 219

Replies to This Discussion

Student's Message: Msg No. 548010
Subject: Query
Respected Sir
What is model??
How many types of model exist ?
Thanks
Post Your Comments
Other Students' Comments: 0

Instructor's Reply:
Model if used to identify steps for developing something e.g. as a map, blueprints for building roads and bridges etc. 
Which model types you want to know, is that object model types of some thing else, please clarify your question.
 [MC110400449]

Posted On: 
October 18, 2012 09:57 AM

Replied On:
October 18, 2012 11:46 AM

Student's Message: Msg No. 548008
Subject: Query
Respected Sir 
Plz explain information hiding ...........
Thanks
Post Your Comments
Other Students' Comments: 0

Instructor's Reply:
Please read handouts as information hiding is already discussed in handout with enough details.
 [MC110202038]

Posted On: 
October 17, 2012 08:58 PM

Replied On:
October 18, 2012 11:58 AM

Student's Message: Msg No. 547825
Subject: OOP's importance
Is OOP a gateway towards the approach of programming?
Post Your Comments
Other Students' Comments: 0

Instructor's Reply:
No, we can’t say this exactly as there are many other programming paradigms as well which doest not involves objects. However OOP is the major paradigm used for objects in many languages. For further details please read following links: 
http://en.wikipedia.org/wiki/Programming_paradigm
http://en.wikipedia.org/wiki/Programming_paradigm
 [BC110400538]

Posted On: 
October 17, 2012 08:34 PM

Replied On:
October 18, 2012 12:04 PM

Student's Message: Msg No. 547810
Subject: model
Respected sir,
plz inform me the deference about model and analyses in object oriented program. and why we do a model for object?
Post Your Comments
Other Students' Comments: 0

Instructor's Reply:
Model if used to identify steps for developing something e.g. as a map, blueprints for building roads and bridges etc, while object oriented analysis is process of analyzing a task also known as a problem domain, to develop a conceptual model that can then be used to complete the task. Please go through following link for further details:
http://en.wikipedia.org/wiki/Object-oriented_analysis_and_design
 [MC120204018]

Posted On: 
October 17, 2012 06:12 PM

Replied On:
October 18, 2012 12:11 PM

Student's Message: Msg No. 547702
Subject: mc120204018
respected sir,
what is real life applications of oop????
Post Your Comments
Other Students' Comments: 0

Instructor's Reply:
OOP is used in many languages. Please read following links:
http://en.wikipedia.org/wiki/Object-oriented_programming
 [MC120204018]

Posted On: 
October 17, 2012 06:08 PM

Replied On:
October 18, 2012 11:44 AM

Student's Message: Msg No. 547698
Subject: mc120204018
what is difference between Encapsulation and Abstraction ?
regards,
tahreem yousaf
talagang
Post Your Comments
Other Students' Comments: 0

Instructor's Reply:
In encapsulation all the characteristics of an object is present in the object itself while in abstraction we capture only those details which are relevant to object current prospective. Read handout as their difference is given in handout with enough details.
 [MC120204018]

Posted On: 
October 17, 2012 06:07 PM

Replied On:
October 18, 2012 11:39 AM

Student's Message: Msg No. 547697
Subject: lecture 2
respected sir,
pl z explain the following sentence.
"if we change implementation of function it doesn't affect the object oriented model."
how it will be possible??
pl z clarify my concept thanks.
Post Your Comments
Other Students' Comments: 0

Instructor's Reply:
As in OOP paradigm we go with separation of interface and implementation, when make changes in the implementation, our interface remain same i.e. there will be no changes on the interface of object. And object model deals with the interface, so object model remain same. This concept will be further clarified in details in upcoming lectures.
 [BC110402490]

Posted On: 
October 17, 2012 03:32 PM

Replied On:
October 18, 2012 11:33 AM

Student's Message: Msg No. 547611
Subject: Lectures
Assalamuakum Sir

please give me complete address so i can view lecture. first i will go on ocw.vu.edu.pk than in which tab i click for lectures viewing

Post Your Comments
Other Students' Comments: 0

Instructor's Reply:
 [MC110401426]

Posted On: 
October 17, 2012 09:36 AM

Replied On:
October 17, 2012 11:53 AM

Student's Message: Msg No. 547251
Subject: grading schema
Asskan-0-alikum!
Respected sir!
kindly tell me grading schema of this course
regards,
Post Your Comments
Other Students' Comments: 0

Instructor's Reply:
Grading scheme can be found in VULMS under your course CS304 now. 
 [MC100403379]

Posted On: 
October 17, 2012 12:20 AM

Replied On:
October 17, 2012 10:01 AM
Student's Message: Msg No. 547104
Subject: lec 1
Asalamoalaikum sir,
object is anything which is tengible and nontengible. in object oriented programing we make related information about any object??
Post Your Comments
Other Students' Comments: 0

Instructor's Reply:
Tangible: Something that can be physically touched or felt. For example something real and substantial. 

Intangible: Something that cannot be touched. If something is intangible it does not mean it's not real. It just means it has no physical existence like emotions.
 [MC110201184]

Posted On: 
October 16, 2012 07:59 PM

Replied On:
October 17, 2012 10:07 AM
Student's Message: Msg No. 546931
Subject: C sharp:
respected sir:
from when we will start studying c sharp language?
how c sharp is better then c++?
regards 
basit ali.
Post Your Comments
Other Students' Comments: 0

Instructor's Reply:
In this course you will study C++ using Dev C and in upcoming lectures it will start.
 [MC120204018]

Posted On: 
October 16, 2012 06:50 PM

Replied On:
October 17, 2012 10:11 AM
Student's Message: Msg No. 546872
Subject: mc120204018
respected sir,
why model is required ?
Post Your Comments
Other Students' Comments: 0

Instructor's Reply:
To identify steps for developing something e.g as a map, blueprints for building roads and bridges etc.

We need models to understand an aspect of reality.

 [MC120204018]

Posted On: 
October 16, 2012 06:48 PM

Replied On:
October 17, 2012 10:16 AM
Student's Message: Msg No. 546868
Subject: mc120204018
RESPCTED SIR,
WHY OOP IS BETTER THAN PROCEDURAL PROGRAMMING?
Post Your Comments

Instructor's Reply:

Among the major reasons following are some:

  • Information hiding and encapsulation
  • Simplicity
  • Re-use
  • Maintainability and empathy
 [MC110400860]

Posted On: 
October 16, 2012 04:55 PM

Replied On:
October 17, 2012 10:19 AM
Student's Message: Msg No. 546774
Subject: OOP and OO Model
Respected Sir,

How can differentiate b/w OOP and OO Model?

Regards,
Farhan Ahmed
Post Your Comments

Instructor's Reply:

We make Object Oriented models showing several interacting objects to understand a system given to us for implementation.

During coding in object oriented programming approach we have objects with their attributes and behaviors that are hidden from other classes, so we can say that object oriented programming follows the principle of information hiding.

 [BC100200054]

Posted On: 
October 16, 2012 02:46 PM

Replied On:
October 16, 2012 03:46 PM
Student's Message: Msg No. 546663
Subject: strcpy
Respected Sir;
Is strcpy(something) a reserved word for C++?
Also give me some guidelines of perfect programming. 
Thanks and regards.
Post Your Comments
Other Students' Comments: 0

Instructor's Reply:
strcpy is a reserved word for copying the C string pointed by source into the array pointed by destination, including the terminating null character (and stopping at that point).
Try practicing as much as possible where ever you can find related to your subject.
Student's Message: Msg No. 550004
Subject: cs304
AOA . sir,
1 . plz expline the difference between "IS A " relationship or "IS A KIND OF "reletionship? and give ma a example?
and second question is 
expline "less redundancy "or " increase maintainablity"
Post Your Comments
Other Students' Comments: 0

Instructor's Reply:
The is-a relationship has an inheritance feature (like "extends" or "implements") e.g. Pizza is a food, A car is a vehicle etc.
less redundancy (duplication of code is decreased)
increase maintainability (now code can easily be managed)

Student's Message: Msg No. 547162
Subject: Asalm-O-Alikum
Dear Sir,
I gone through some lectures and found that though the subject is interesting and let me say your way of teaching in lectures is really appreciable but making a object oriented model on my own seems bit difficult i think i need more practice.It Does not relate to this lecture but i had an issue so i shared. 
 
Post Your Comments
Other Students' Comments: 0

Instructor's Reply:

Lots of practice is the key to learn better.




thnx for sharing

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