Understanding Python Classes and Objects

What is a class in Python?

• A class in Python is a function that returns a value.

• A class in Python is a way to create variables that hold data.

• A class in Python is a template for creating objects that define attributes and methods.

• A class in Python is a built-in data type for storing numbers.

How do you define a class in Python?

• class:ClassName()

• function ClassName() {}

• class ClassName: pass

• define ClassName as a class:

What is an object in Python?

• A variable that stores a single value.

• A function that performs a specific task.

• An object in Python is an instance of a class that contains data and methods.

• A built-in data type like integer or string.

How do you create an object from a class?

• Instantiate the class with a string.

• Use a function to create an object.

• Call the class method to generate an object.

• Use the class constructor to create an object.

What is the purpose of the __init__ method?

• To delete an object instance.

• To define a class method.

• To create a new class type.

• To initialize a new object instance in a class.

What are instance variables?

• Instance variables are static properties shared across all instances.

• Instance variables are attributes that belong to an instance of a class.

• Instance variables are global variables accessible from anywhere.

• Instance variables are methods that perform actions on a class.

What are class variables?

• Class variables are unique to each instance of a class.

• Class variables are shared variables defined within a class that are accessible by all instances of that class.

• Class variables are local variables defined in methods of a class.

• Class variables are only accessible within the class they are defined in.

How do you access instance variables?

• Use 'this.variable_name' to access instance variables.

• Access instance variables with 'variable_name' directly.

• Call 'getVariable(variable_name)' to retrieve instance variables.

• Use 'self.variable_name' to access instance variables.

What is the difference between instance variables and class variables?

• Both instance and class variables are unique to the class itself.

• Instance variables are shared among all objects; class variables are unique to each object.

• Instance variables can be accessed without creating an object; class variables cannot.

• Instance variables are unique to each object; class variables are shared among all objects.

What is inheritance in Python?

• Inheritance allows classes to be combined into one.

• Inheritance is a way to create multiple instances of a class.

• Inheritance is a method to delete properties from a class.

• Inheritance in Python is a mechanism where a new class derives properties and behavior from an existing class.