Creator, Producer, Observer, Or Mutator? - Swarthmore College

Creator, producer, observer, or mutator? Creator - create new instances of a type. Creators can take other objects as arguments but not the type itself Producer - Create new objects from existing objects Observer - Take instances of a type and return a different type Mutator - Changes an instance

Creator, producer, observer, or mutator?

Creator, producer, observer, or mutator? Producer because it creates a new string from existing strings

Creator, producer, observer, or mutator?

Creator, producer, observer, or mutator? Producer because it creates a new list from an existing list

Creator, Creator, producer, producer, observer, observer, oror mutator? mutator?

Creator, Creator, producer, producer, observer, observer, oror mutator? mutator? Creator This is a special case of constructor which returns a constant

Creator, Creator, producer, producer, observer, observer, oror mutator? mutator?

Creator, Creator, producer, producer, observer, observer, oror mutator? mutator? Mutator because it changes an instance of a list

Creator, Creator, producer, producer, observer, observer, oror mutator? mutator?

Creator, Creator, producer, producer, observer, observer, oror mutator? mutator? Creator because it creates a new DateTime which contains the current time

Creator, producer, observer, or mutator?

Creator, producer, observer, or mutator? Producer because it creates a new string from an existing string

Creator, Creator, producer, producer, observer, observer, oror mutator? mutator?

Creator, Creator, producer, producer, observer, observer, oror mutator? mutator? Creator because it creates a new Vector3 based on a constant

Creator, Creator, producer, producer, observer, observer, oror mutator? mutator?

Creator, Creator, producer, producer, observer, observer, oror mutator? mutator? Creator because it creates a new DateTime from 3 integers (this is a typical creator, invoked with new)

Creator, Creator, producer, producer, observer, observer, oror mutator? mutator?

Creator, Creator, producer, producer, observer, observer, oror mutator? mutator? Observer because it takes in two Vectors and returns a boolean; it computes information that tells us about left and right. This methods is called like Vector3 left new Vector3(1,0,0); Vector3 right new Vector3(0,1,0); bool result (left right);

Creator, Creator, producer, producer, observer, observer, oror mutator? mutator?

Creator, Creator, producer, producer, observer, observer, oror mutator? mutator? Observer because it returns an int given an instance of DateTime. Hour is a typical accessor method implemented as a property.

Creator, Creator, producer, producer, observer, observer, oror mutator? mutator?

Creator, Creator, producer, producer, observer, observer, oror mutator? mutator? Mutator because it modifies the value of Hours in a DateTime instance

Creator, Creator, producer, producer, observer, observer, oror mutator? mutator?

Creator, Creator, producer, producer, observer, observer, oror mutator? mutator? Producer because it creates a new Vector3 based on existing Vector3

Creator, Creator, producer, producer, observer, observer, oror mutator? mutator?

Creator, Creator, producer, producer, observer, observer, oror mutator? mutator? Producer because it creates a new DateTime from a string. Note this function as two return values: a bool and a result. Note also that it’s not a mutator because it creates a new DateTime rather than modifying the existing one that is passed in. DateTime is an immutable object in .NET

Creator, Creator, producer, producer, observer, observer, oror mutator? mutator?

Creator, Creator, producer, producer, observer, observer, oror mutator? mutator? Observer because it returns an int based ona list

Creator, Creator, producer, producer, observer, observer, oror mutator? mutator?

Creator, Creator, producer, producer, observer, observer, oror mutator? mutator? Mutator because it modifies an existing list

Creator, producer, observer, or mutator?Creator, producer, observer, or mutator? Producer because it creates a new DateTime from a string. Note this function as two return values: a bool and a result. Note also that it's not a mutator because it creates a new DateTime rather than modifying the existing one that is passed in. DateTime is an