What are variables and constants in programming?
Variables are storage locations with a name that hold data, while constants are fixed values that do not change.
Can you give me an example of a variable?
Sure! In Python, you can create a variable like this: age = 25
, where age
is the variable name.
And what about a constant?
A constant in Python can be represented by using uppercase letters, like PI = 3.14
, which represents the value of pi.
Why should I use constants instead of variables?
Using constants helps prevent accidental changes to values that should remain fixed, improving code reliability.
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