Variable Declarations

What are Variables? 🧮

Think of variables as magic boxes where you can store data—numbers, words, or even true/false statements! These boxes come with labels (names) so you can find them easily.

In pseudo-code, variables are declared using the DECLARE keyword. Let’s dive into this exciting world of variable declarations and see how to convert them to Python.

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Syntax in Pseudo-Code

Here’s how variables are declared in pseudo-code:

DECLARE VariableName : DataType

Examples:

DECLARE Age : INTEGER
DECLARE Name : STRING
DECLARE Temperature : REAL
DECLARE IsStudent : BOOLEAN

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Conversion to Python 🐍

In Python, there’s no need to use DECLARE or specify the type of data. You simply assign a value, and Python figures out the type automatically. Amazing, right?

Here’s how the above pseudo-code converts to Python:

Variable Declarations in Python

Age = 0  # INTEGER
Name = ""  # STRING
Temperature = 0.0  # REAL
IsStudent = False  # BOOLEAN

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Supported Data Types

Pseudo-Code Data Type	Python Equivalent	Example
INTEGER	int	Age = 16
STRING	str	Name = "Alice"
REAL	float	Temperature = 36.5
BOOLEAN	bool	IsStudent = True

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Pro Tip

In Python, variable names are case-sensitive, so age and Age are different variables. Keep this in mind to avoid sneaky bugs!

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Let’s Practice 📝

Try converting these pseudo-code declarations into Python:

Challenge

DECLARE Score : INTEGER
DECLARE Greeting : STRING
DECLARE PiValue : REAL
DECLARE IsRainy : BOOLEAN

Python Solution:

Score = 0
Greeting = ""
PiValue = 0.0
IsRainy = False

Great job! 🎉