When should I use if-else statements in programming?

When should I use if-else statements in programming?

If-else statements are used to execute different code blocks based on certain conditions. You should use them when you have a decision to make in your code.

Can you give me an example of an if-else statement?

Sure! Here's a simple example in Python:

age = 18
if age >= 18:
    print('You are an adult.')
else:
    print('You are a minor.')

What are some alternatives to if-else statements?

Alternatives include switch statements, ternary operators, and using polymorphism in object-oriented programming.

Are there any performance considerations with if-else statements?

Yes, in cases with many conditions, if-else statements can become less efficient. In such cases, consider using a dictionary or a switch statement.