Why are protected variables bad?
Protected member variables have significant disadvantages because they effectively allow client code (the sub-class) access to the internal state of the base class class. This prevents the base class from effectively maintaining its invariants.
What does it mean when a variable is protected?
Protected variables, are variables that are visible only to the class to which they belong, and any subclasses.
What is the difference between private and protected in C++?
The class members declared as private can be accessed only by the functions inside the class. The class member declared as Protected are inaccessible outside the class but they can be accessed by any subclass(derived class) of that class.
Does C++ have protected?
You write “Members in C++ classes are protected by default”.
Why do we need variables in clean code?
Making your code as clean as possible will improve its quality so that others will understand it intuitively, reducing the possibility of errors and improving the quality of Maintainance. In this article, I will talk about only one aspect of clean code, variables. It is structured in short paragraphs under topical headings.
Why do Inheritors need to maintain protected variables?
Protected variables generally have some intrinsic invariance associated with them (or else they’d be public). Inheritors then need to maintain those properties, which people can screw up or willfully violate.
What to avoid when using the word variable?
Avoid using noise words such as String, Data, List, Object, Table, Variable. They don’t add anything to the value of the name and may confuse if what is name StringTable is neither a String or a Table. There are many common abbreviations that are well known by everyone, but many that are not.
Do you use the variable’s type in the name?
Be kind to those will maintain your code and never use the variable’s type in the variable’s name. If accountList is a list then don’t use the word list in the variables name. Confusion may be caused as it’s possible that the variable type changes from a list to an object of a different type.