Chapter 11 Python

Pataasin ang iyong marka sa homework at exams ngayon gamit ang Quizwiz!

what is the relationship called in which one object is a specialized version of another object?

is a

Which method can you use to determine whether an object is an instance of a class?

isinstance

________ has the ability to define a method in a subclass and then define a method with the same name in a superclass.

polymorphism

In the following line of code, what is the name of the subclass? class Rose(Flower):

rose

________ allows a new class to inherit members of the class it extends.

inheritance

Given the following beginning of a class definition for a superclass named clock, how many accessor and mutator methods will be needed to complete the class definition? class clock: def __init__(self, shape, color, price): self._shape = shape self.color = color self.price = price

3 mutator, 3 accessor

what gives a program the ability to call the correct method depending on the type of object that is used to call it?

Pollymorphism

In an inheritance relationship, what is a specialized class called?

a subclass

what does a subclass inherit from a superclass?

atrributes and methods

Of the two classes, Cherry and Flavor, which would most likely be the subclass?

cherry

Which of the following is the correct syntax for defining a class, table, which inherits from the furniture class?

class table(furniture):

in the following line of code, what is the name of the base class? class Python(Course):

course

A subclass may not override any method other than the __init__ method.

false

A superclass inherits attributes and methods from its subclasses without any of them having to be rewritten.

false

In a UML diagram depicting inheritance, you only need to write the name of the subclass.

false

When a class inherits another class, it is required to use all the data attributes and methods of the superclass.

false

One problem with using a UML diagram is that there is no way to indicate inheritance.

false lol the whole point of the diagram is to show inheritance

An "is a" relashonship exists between a grasshopper and a bumblebee

fasle

When there are several classes that have many common data attributes, it is better to write a(n) ________ to hold all the general data.

superclass

base classes are also called

superclasses

In a UML diagram, what does the open arrowhead point to?

the superclass

Each subclass has a method named __init__ that overrides the superclass's __init__ method.

true

New attributes and methods may be added to a subclass.

true

Polymorphism works on any two class methods that have the same name.

true

Given the following line of code, in a UML diagram, what would the open arrowhead point to? class Celery(Vegetable):

vegetable


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