When should I use nested if-else statements?

Can you explain when to use nested if-else statements in programming?

Nested if-else statements are useful when you need to evaluate multiple conditions that depend on each other. For example, if you want to check a user's age and then determine if they are eligible for a senior discount, you would use a nested if-else.

Can you give me an example of that?

Sure! Here's a simple example:

age = 65
if age >= 18:
    if age >= 65:
        print('Eligible for senior discount')
    else:
        print('Not eligible for senior discount')
else:
    print('Not an adult')

Are there any downsides to using nested if-else statements?

Yes, too many nested if-else statements can make your code harder to read and maintain. It's often better to use other structures like switch statements or separate functions for complex logic.