Tagged Questions

2
votes
1answer
187 views

“import” a definition of a function from a base class to implement abstract interface (multiple inheritance in C++)

Say we have a class inheriting from two base classes (multiple inheritance). Base class A is abstract, declaring a pure virtual function foo, the other base class B declares and implements a function ...
8
votes
5answers
2k views

Virtual Extension Methods in upcoming Java 8 release

When I see code snippets like interface A { void a(); void b() default { System.out.println("b"); }; void c() final { System.out.println("c"); }; } I have one question. ...
9
votes
7answers
510 views

Are interfaces redundant with multiple inheritance?

This is not yet another question about the difference between abstract classes and interfaces, so please think twice before voting to close it. I am aware that interfaces are essential in those OOP ...
2
votes
3answers
4k views

Multiple derived abstract classes?

I have to create a Course Management System with course categories: Cooking, sewing and writing courses - cooking and writing each have 2 courses (Italian, seafood, creative write and business write). ...
0
votes
3answers
2k views

Java: Why multiple interfaces instead of multiple inheritance? [duplicate]

Possible Duplicates: Why does Java allow multiple inheritance from interfaces but not from abstract/concrete classes Why there is no multiple inheritance in Java, but implementing multiple ...