include object inside a class or better derive from that class?
1099
Prefer composition over inheritance?
117914
When to use self references or composition?
1138
How to avoid having class data shared among instances?
131176
Collection versus List what should you use on your interfaces?
81624
Is returning null bad design?
128212
Performance of using static methods vs instantiating the class containing the methods
31437
When should you use a class vs a struct in C++?
17633
class << self vs self.method with Ruby: what's better?
39482
Abstract, Interface, Classes OH MY - Question on Approach
94851
Adding a set accessor to a property in a class that derives from an abstract class with only a get accessor
3868
Why use the 'ref' keyword when passing an object?
22859
Initialize class fields in constructor or at declaration?
90827
Advantage of Local Classes Java
134329
Can you use a string to instantiate a class?
52180
Benefits of using `Object.create` for inheritance
6085
Why use getters and setters/accessors?
81810
What's the best way to store class variables in PHP?