Unit 2

OOP and Inheritance

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Session Overview

In this lecture, we learn about object-oriented programming (OOP) and how classes are used to implement new types of objects in Python. As part of that discussion we introduce inheritance.

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Session Activities

Lecture Videos

About this Video

Topics covered: Object-oriented programming (OOP), abstract data types, specifications, subclasses, inheritance.

Resources

Recitation Videos

About this Video

Topics covered: Double recursion, big O notation, binary function, run times, object-oriented programming, classes, encapsulation, methods, class hierarchy, subclasses, inheritance, polymorphism, accessor and mutator functions, Person example, underbar methods, self parameter.

Check Yourself

What is an instance?

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Instances are the actual objects built in accordance with the qualities of the class.

What is an abstract data type?

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A set of objects and the operations on those objects.

What is encapsulation?

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Encapsulation means that names (of variables and methods) are stored in locations that then have to be accessed, called namespaces.

What is data hiding?

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Data hiding makes data invisible to users of the object, requiring it to be accessed only via the object’s methods.

What functions can subclasses use?

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Subclasses can use all the functions of their superclass. They can also use any functions that are defined within the subclass; however, if the subclass uses the same name for a function which has also been used in the superclass, it will only use the subclass definition of that function.

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Course Info

Learning Resource Types

theaters Lecture Videos
theaters Recitation Videos
assignment_turned_in Problem Sets with Solutions
grading Exams with Solutions
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