Old MathJax webview

please answer these questions simply thanks

for c++

Why? Why do we write classes? What is encapsulation, and why do we do it? Construction What does a constructor look like? (i.e. how would you write one?) What is a default constructor? Do you need a default constructor? What is an implicitly declared constructor? How many constructors can an object have? Other class functions What is the purpose of an accessor function? What is the purpose of a mutator function? How do we use/write these things? What is an invoking object? What is the "this" keyword? What are the different levels of accessibility for class members? What accessibility does a class have by default? What about a struct? How are classes broken down in separate files? (i.e. what parts of a class go in which files?) a