Not using constructor parameters can leave fields uninitialized or misleadingly initialized.
If you do not use constructor parameters to initialize fields, it can lead to objects with default values, which may not represent the intended state. For instance, in a `Customer` class, if you omit constructor parameters and rely on default values, you might end up with an invalid `Customer` object with a `null` name and a `0` balance. This is especially problematic in an e-commerce system where customer data integrity is crucial.
Additional Notes
What are the pitfalls of not using constructor parameters to initialize fields?