abstract class constructor practical use
27458
Can an abstract class have a constructor?
12185
Instantiate a class object with constructor that accepts a string parameter?
66645
Abstract methods in Java
6853
Interface vs Abstract Class (general OO)
50570
When to use an interface instead of an abstract class and vice versa?
60540
Should I instantiate instance variables on declaration or in the constructor?
60490
Why would one declare an immutable class final in Java?
102355
Java 8: virtual extension methods vs abstract class
55606
Use of Initializers vs Constructors in Java
107018
Are parent class constructors called before initializing variables?
140163
Can a class have no constructor?
150754
Python - Testing an abstract base class
26931
Instantiating inner class
57526
Why is there a private access modifier in an abstract class in Java, even though we cannot create an instance of an abstract class?
145184
Object-oriented design: Saving complex objects
87220
How do I programmatically compile and instantiate a Java class?
71554
what is the real use case of dependency injection?