What are some examples of attributes and methods in programming?

What are some examples of attributes and methods in programming?

Attributes are characteristics of an object, while methods are functions that operate on those objects. For example, in a 'Car' class, attributes could be 'color' and 'model', and methods could be 'drive()' and 'stop()'.

Can you give me a specific example in Python?

Sure! In Python, you might have a class like this:

class Dog:
    def __init__(self, name, age):
        self.name = name  # attribute
        self.age = age    # attribute

    def bark(self):
        return 'Woof!'  # method

Here, 'name' and 'age' are attributes, and 'bark()' is a method.

What happens if I try to access an attribute that doesn't exist?

If you try to access an attribute that doesn't exist, Python will raise an AttributeError. For example, if you try to access dog.color when 'color' isn't defined, you'll get an error.

How can I add a new method to the Dog class?

You can simply define a new function within the class. For example, you could add a method like this:

def fetch(self):
    return 'Fetching!'

Now, you can call dog.fetch() to see the new behavior.