Data Types and Variables

In Course course one, understanding the different data types and how to declare variables is essential. Data types define the kind of values that can be stored and manipulated, while variables provide a way to label and store values.

Common Data Types

Let's take a look at some common data types in Python:

• Integer: Represents whole numbers without decimal points, such as 1, 10, -5.
• String: Represents a sequence of characters, surrounded by single or double quotes, such as "hello", 'world'.
• Float: Represents numbers with decimal points, such as 3.14, -2.5.
• Boolean: Represents either True or False.

Declaring Variables

Variables in Python are declared using the following syntax:

1variable_name = value

For example, let's declare some variables:

1age = 25
2name = "John Doe"
3salary = 2500.50
4is_student = True

The code snippet above declares variables of different data types. The age variable is an integer, the name variable is a string, the salary variable is a float, and the is_student variable is a boolean.

To access the values of these variables, you can simply print them using the print function:

1print(age)
2print(name)
3print(salary)
4print(is_student)

This will output the values stored in the variables.

In the next lesson, we will explore working with arrays and learn how to handle and perform operations on them in Course course one.

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if __name__ == "__main__":

    # Declare a variable of integer type

    age = 25

​

    # Declare a variable of string type

    name = "John Doe"

​

    # Declare a variable of float type

    salary = 2500.50

​

    # Declare a variable of boolean type

    is_student = True

​

    # Print the values of the variables

    print(age)

    print(name)

    print(salary)

    print(is_student)