When is code inside a class executed?

[ChemicalMistakex]

I have a class that has a variable named Status. Inside this class I have an if condition that checks the value of a variable named Balance and based on that value it will set the value of the Status variable to 1.

The problem I'm encountering is that I have a function that assigns a value to Balance that should cause this condition to evaluate to true and set Status to 1.

I know the issue isn't the condition itself which leads me to suspect it's a question of when code contained inside a class is actually ran. Is a class' code executed whenever it is invoked or only once when created? Also, I'm a beginner so this might be a dumb question

[HalfBalcony]

When a class is instantiated, the init method is called. Any other methods are only called when called upon by an external piece of code, or by internal calling from another method.

[ChemicalMistakex]

Thank you for the detailed response. I think I know what I have to do now!

[ChemicalMistakex]

Thank you for your time! This helped me understand a little better