CS304 HANDOUTS PDF

JoJomuro Multimedia and Web Technology Subject Description: A phone SIM card may store several phone numbers but we can t read the numbers directly from the SIM card rather cs reads this information for us and if the owner of this phone has not allowed others to see the numbers saved in this phone we will not be able to see those phone numbers using phone. Satisfy all More yandouts. Introduction A Use Case diagram is a graphical representation of the high-level system scope. In method 4 swim In method walk Example 2 Multiple Inheritance Take another example of amphibious vehicle vehicle that can run on land as well as on water so it has properties of both land as well as of water vehicle. Virtual University of Pakistan 1 In that case we will use the concept of specialization. Permission is granted to copy for the PLoP conference.

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JoJomuro Multimedia and Web Technology Subject Description: A phone SIM card may store several phone numbers but we can t read the numbers directly from the SIM card rather cs reads this information for us and if the owner of this phone has not allowed others to see the numbers saved in this phone we will not be able to see those phone numbers using phone. Satisfy all More yandouts. Introduction A Use Case diagram is a graphical representation of the high-level system scope.

In method 4 swim In method walk Example 2 Multiple Inheritance Take another example of amphibious vehicle vehicle that can run on land as well as on water so it has properties of both land as well as of water vehicle. Virtual University of Pakistan 1 In that case we will use the concept of specialization. Permission is granted to copy for the PLoP conference.

In case of public inheritance it is IS-A relationship. Student has two extra attributes program and studyyear Similarly it has extended behaviour by adding study and takeexam. Objects communicate with each other using messages. Override eat cd in Mermaid class b. As was the case with simple single inheritance multiple inheritance also decreases redundant code as we can inherit cs class from many classes and can use their functions without the need to write them again.

Kinds of data and how they. Compiling Object Oriented Languages. The chief use of binary trees is for providing rapid access to data indexing, if you will More information. Student s Perspective Attributes: What do we do? Design of an E-R Database Schema! Something tangible Ali, School, House, Car. 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.

Engineering Process We need to understand the steps that take us from an idea to a product. Function Definition Includes description of the interface and the function. Object-Oriented Programming and Classes Ch This relationship ensures that public members of base class are available to derived class in case of public inheritance.

Now it is up to object Ali whether he wants to share that information with outside world or not. Increased maintainability Reuse with Inheritance Main purpose of inheritance is reuse, we can easily add new classes by inheriting from existing classes. Virtual University of Pakistan 1. How do we know when we re finished each step? To make this website work, we log user data and share it with processors. Examples of Encapsulation Consider the same example of object Ali of previous lecture we described it as follows, 16 Virtual University of Pakistan.

Person 24 Virtual University of Pakistan. As we discussed previously that data and behavior of each object is hidden in that object it self so we have to use the concept of interface of the object to expose its behavior to outer word objects. Entity Relationship Hndouts Lecture 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.

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

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Kazrasida The need of future Prof. Sub typing is looking at things from Top to bottom whereas in generalization we look at things from bottom to top Specialization Restriction We want to add a class to existing hierarchy of classes having many similarities to already existing classes but some part of its behaviour is different or restricted. It includes use cases, which are pieces of functionality the system More information. Entities, attributes, More information. It is a reference by which one object can interact with some other object. Hakimzadeh, 1 Outline Overview. In the context of programming models are used to understand the problem handoutts starting developing it.

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Object Oriented Programming (CS304)

Tygole Solution Uandouts can solve this problem by explicitly calling eat method from any of the parent classes in Mermaid class according to behaviour of Mermaid i. This course is an introduction to objectoriented programming using the Java language. It includes use cases, which are pieces of functionality the system More information. Analyze customer software needs and system requirements to design an information technology-based project plan.

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