Search for tag: "getter"

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08:56 Lesson 24.4 Duck Typing Lesson 24.4 Duck Typing	Lesson 24.4 Duck Typing This partial typing from the previous video has a name. It is called duck typing. In this video we show both why this is so popular among Python programmers and also why it is so controversial. duck point typing fraction attributes object types denominator numerator instance language programming times function bugs languages getter python class ease From Hannah Lee on November 12th, 2020 37 plays Content Categories Instructional Recordings Creation Date November 12th, 2020 Creator 1 First Name Walker Creator 1 Last Name White Creator 1 Role Faculty or Staff Member Creator 1 NetID wmw2 Language English Searchable Yes Searchable On Cornell Web Search
09:37 Lesson 23.8 Properties (OPTIONAL) Lesson 23.8 Properties (OPTIONAL)	Lesson 23.8 Properties (OPTIONAL) This video introduces an advanced topic that is completely optional and will not appear on any exam. Classes like RGB and Point3 appear to enforce their invariants without any getters and setters.… property attribute numerator method getter setter fraction class properties tutor invariant setters getters denominator decorator module fact specification attributes rgb From Hannah Lee on November 8th, 2020 14 plays Content Categories Instructional Recordings Creation Date November 7th, 2020 Creator 1 First Name Walker Creator 1 Last Name White Creator 1 Role Faculty or Staff Member Creator 1 NetID wmw2 Language English Searchable Yes Searchable On Cornell Web Search
09:07 Lesson 22.8 Subclass Initializers Lesson 22.8 Subclass Initializers	Lesson 22.8 Subclass Initializers In this video we show that thte primary purpose of the super function is in the initializer method of the subclass. That is because we cannot guarantee that all of the attributes for the parent class… initializer bonus executive attribute salary employee attributes setters class module method getter helper problem tutor things thing methods getters setter From Hannah Lee on November 8th, 2020 35 plays Content Categories Instructional Recordings Creation Date November 7th, 2020 Creator 1 First Name Walker Creator 1 Last Name White Creator 1 Role Faculty or Staff Member Creator 1 NetID wmw2 Language English Searchable Yes Searchable On Cornell Web Search
04:57 Lesson 21.6 Immutable Attributes Lesson 21.6 Immutable Attributes	Lesson 21.6 Immutable Attributes Getters and setters have another advantage in that they allow us to completely disable to any changes to an attribute. This allows us to separate attributes into mutable and immutable attributes,… attribute person turtle setter attributes setters getters initializer class things definition preconditions getter alright underscore distinction error fact statement assignment From Hannah Lee on October 30th, 2020 52 plays Content Categories Instructional Recordings Creation Date October 29th, 2020 Creator 1 First Name Walker Creator 1 Last Name White Creator 1 Role Faculty or Staff Member Creator 1 NetID wmw2 Language English Searchable Yes Searchable On Cornell Web Search
07:37 Lesson 21.4 Invariant Enforcement Lesson 21.4 Invariant Enforcement	Lesson 21.4 Invariant Enforcement We know how to enforce preconditions, but how do we force invariants for our attributes? As we see in this video, we do it much the same as for preconditions. But that is because we are going to… preconditions methods class attributes precondition statements invariance method hour purpose object getter programmer minute initializer attribute setter problem invariants values From Hannah Lee on October 30th, 2020 60 plays Content Categories Instructional Recordings Creation Date October 29th, 2020 Creator 1 First Name Walker Creator 1 Last Name White Creator 1 Role Faculty or Staff Member Creator 1 NetID wmw2 Language English Searchable Yes Searchable On Cornell Web Search