Each class you create becomes a new you can use to declare variables and create objects


What is a class?

A class is like a template for creating objects. Objects created from the same class will have the same variables and methods, but the values of those variables will be different. Classes are used to create objects that belong to a certain category. For example, you might have a class for animals, which would include variables and methods for each animal.

What is an object?

An object is an instance of a class. A class is like a blueprint for an object. It defines the properties and behavior that the object will have.

What is a variable?

In computer programming, a variable is a value that can change, depending on conditions or on information passed to the program. Typically, a programmer names a variable by assigning it a label. For example, in the C programming language (as well as in many others), the programmer may Label a variable rate with the name rate. The equal sign (=) is used to assign values to variables.

How to create a class

In Python, a class is created by the keyword: class. An object is created by the keyword: object. Each class you create becomes a new data type, which you can use to declare variables and create objects.

How to create an object


In Python, a class is created by the keyword: class.

An object is created by using the name of the class, followed by parentheses.

Example: Creating a Class and an Object in Python
Create a class named MyClass, with a property named x:

class MyClass:
x = 5

How to create a variable

In computer programming, a variable is a value that can be changed, depending on conditions or on information passed to the program. You can use variables to store data, such as the contents of a form, and display different messages depending on the user’s input.

You can create variables in two ways:

  1. By using the var keyword: var x = 5;
    var y = “Hello”;
  2. By using the let keyword: let x = 5;
    let y = “Hello”;
    What you can do with a class
    In this tutorial, we will go over what you can do with a class once you have created it. We will cover how to declare variables and how to create objects.
    What you can do with an object

Now that you know the basics of object-oriented programming in Java, it’s time to learn what you can do with an object.

As we mentioned before, each class you create becomes a new type that you can use to declare variables and create objects. Once you have an object, there are a number of things you can do with it.

You can call methods on the object to make it do something. For example, if you have a Dog object, you could call its bark() method to make it bark.

You can access and modify the object’s fields (variables). For example, if you have a Dog object, you could access its age field to find out how old it is, or modify its name field to change its name.

You can compare the object to other objects. For example, if you have two Dog objects, you could compare them to see if they are equal.

You can use the object as a parameter or return value for a method. For example, if you have a Dog object, you could pass it as a parameter to a method that needs a Dog object.

What you can do with a variable

A variable is a value that can be changed during the program. You can use variables to store data in your program. The value of a variable can be changed during the program. If you want to store a complex data type like an array or an object, you can use a variable.


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