Object Oriented Programming (CS) VU CSHandouts Last Updated: 20/ 08 Object Oriented Programming (CS) VU LECTURE NO Object Oriented Programming (CS) CSHandouts. Download. Object Oriented Programming (CS) CSHandouts. Uploaded by. B. Moeen Ali. CS Complete Handouts 1 to 45 lectures in signle pdf file.
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CS Classes I 1. Increased maintainability Reuse with Inheritance Main purpose of inheritance is reuse, we can easily add new classes by inheriting from existing classes.
Object Oriented Programming (CS304)
Real Life Examples of Information Hiding 1. So we can say that in our daily life everything can be taken as an object that behaves in a certain way and has certain attributes. Suppose we want to implement abstraction for the following statement, Ali is a PhD student and teaches BS students Here object Ali has two perspectives one is his student perspective and second is his teacher perspective.
A model is an abstraction of something real or conceptual.
cs3004 It includes use cases, which are pieces of functionality the system More information. Ambiguity Consider the class hierarchy of Mermaid class below, Woman Fish eat eat Mermaid As mermaid also needs to eat and its both parents have their own methods of eating so here question arises, Which eat operation Mermaid should inherit as both functions are available?
Problems with Multiple Inheritance Increased complexity Amphibious vehicle hierarchy is a complicated as this handojts is derived from two classes that will make code more complex and less understandable however this is obvious as amphibious vehicle is a complicated vehicle.
In case of public inheritance it is IS-A relationship. Software Development Course Title: Java History CS Example Specialization Restriction Suppose we want to add one more class of Adult for some special requirement like for ID card generation such that it is a person but its age is greater than 18 and having all other ca304 of that of person class.
Interface and implementation are separated from each other to achieve Information Hiding. Hakimzadeh, 1 Outline Overview More information.
In the perspective of Object Oriented Programming Information Hiding is, Hiding the object details state and behavior from the users Here by users we mean an object of another class that is calling functions of hadouts class using the reference of this class object or it hadnouts be some other program in which we are using this class.
Better understanding Everyone will be able to understand whole scenario by simple looking into object diagrams without any issue as each object has specific role and specific relation with other objects Interface Virtual University of Pakistan How can hqndouts programs make problem solving easier and more efficient?
Virtual University Of Pakistan: CS Handouts
Java is a platform independent language. Cs340 is the most ca304 feature of Java? Example 1 Multiple Inheritance Consider the example of an imaginary specie Mermaid used in fairy tales that lives in water having handiuts both of a women as well as of a fish, In Object Oriented programming perspective Mermaid handoutd be derived from two classes Women and Fish.
The chief use of binary trees is for providing rapid access to data indexing, if you will More information. Henry Ray 2 hndouts ago Views: Linux Lab 0 0 4 2 1 Write a shell script to input two numbers and perform all mathematical operations on them 2 Write a shell script to print the information about More information.
An abstraction More information. Java primitive types and operations. PBC – Course Name: Reduced understanding Due to increased complexity of class hierarchy the object model becomes difficult it understand especially for someone who is looking it first time. This is where I will conduct my More information. Hansouts may be more than one aspects of an object It is not necessary that every object has a specific role in implementation of a problem there may be some objects without any role, like school parking in our school.
It reduces the redundancy and gives us reusability, using generalization our solution becomes less complex. Who can access the protected members.
Virtual University of Pakistan 1″. An abstract class implements an abstract concept Main purpose is to be inherited by other classes Can t be instantiated Promotes reuse Abstract Classes – Example I Shape color vertices draw move setcolor Circle Line Triangle Here, Shape is an abstract class 36 Virtual University of Pakistan. Base class is general class representing common behaviour of all derived classes.
Abstraction Classes Inheritance Major benefits of inheritance Reuse Abstraction Real life objects have a lot of attributes and many kind of behaviors but most of the time we are cs3044 in only that part of the objects that is related to the problem we are currently going to solve, for example in implementing a school system we don t need to take care of the personnel life of a student or a teacher as it will not effect our system in any way so we will see these objects in the perspective of school system and will ignore their other characteristics, this concept is called Abstraction.
Override eat method in Mermaid class b. Key Concepts of Programming and Software Engineering Software Engineering Coding without a solution design increases debugging time – known fact! Advantages of Encapsulation The following are the main advantages of Encapsulation, a. What do you mean by platform independence? Abstract Classes can not exist standalone in an object model While making object model we start by finding out objects in our object model and then we find out objects having common attributes and make them in the form of general classes at the top of class hierarchies Concrete Classes The entities that actually we see in our real world habdouts called concrete objects and classes made against these objects are called concrete classes.
Customer Service Content Standard hhandouts and Depth of 1. Who can access the protected members More information.
Tutorial – Building a Use Case Diagram 1. Divide and conquer 2.